The cover of Nirvana's second studio album Nevermind - featuring an underwater baby swimming fearlessly towards a dollar bill - marked a seminal moment in music iconography.
Last week, Spencer Elden, now a 17-year-old high school pupil in Eagle Rock, California, spoke of what his place in rock history means to him. "It's kind of creepy that that many people have seen me naked. I feel like I'm the world's biggest porn star," he said.
Elden was just three months old when he was photographed by his parents' friend photographer Kirk Weddle, who paid them $200 for the privilege. "At the time, my parents didn't know who Nirvana were. No one really knew who they were. And then, all of a sudden, it just took off and I just happened to be on the album cover," he said.
THE NAPALM VICTIM
Probably the most famous photograph ever taken, Nick Ut's shot of a naked girl screaming in pain after a napalm attack on the village of Trang Bang near Saigon is credited for turning US public opinion against the Vietnam War.
Kim Phuc, below, was nine when the white phosphorous marker bombs were dropped in June 1972. She suffered terrible burns and was not expected to live. Ut, who won a Pulitzer prize for the image, took her to hospital where she stayed for 14 months.
Phuc has devoted most of her adult life to promoting forgiveness and reconciliation. Soon after claiming political asylum in Canada in 1992, she took on the role of a Goodwill Ambassador for Unesco, and helped set up the Kim Foundation which provides physical and psychological support to young victims of war.
In 1996, Phuc met and publicly forgave Captain John Plummer, a pilot who helped co-ordinate the air strike. She lives in Toronto with her husband and two sons.
THE HOME RULE SHACK IN EDINBURGH
For five years, this ramshackle hut stood at the foot of Calton Hill in Edinburgh as a symbol of Scotland's struggle for its own Parliament. The focus of an extraordinary vigil by the Democracy for Scotland group, it was manned 24 hours a day until the devolution referendum in 1997. Victorious campaigners wanted it to be preserved as part of the country's heritage at the National Museum of Scotland, but it was said to be too big to put on show.
As a result, the 15ft by 8ft structure spent its last years at Redhall Walled Garden in Edinburgh, where it was eventually burned as a safety hazard.
But two wooden window panels bearing a saltire - and a 15ft strip of wood which originally bore the slogan "Support the vigil", but now says "port the vigil", were taken off and saved as mementoes.
TARTAN ARMY TURF STEALERS
More football fans claim to have stolen turf from Wembley Stadium during the infamous Tartan Army pitch invasion in 1977 than the stadium holds.
The famous photograph taken during the euphoric celebrations/mindless vandalism that followed the Scotland's 2-1 victory over England shows fans around the goalposts - the crossbars broken and the net sunken. But who were the supporters who produced shovels and bagged themselves dirty clumps of grass as souvenirs?
Well, if Harry Reid's book The Final Whistle is to be believed, Dennis Canavan, later to be MP for Falkirk West, was among the revellers who secured themselves a place on the pitch. And last year Pat Donaghy, of West Kilbride in Ayrshire, made the ultimate sacrifice, handing over what he claims is one of the penalty spots to the Scottish Football Museum at Hampden Park. Donaghy, 65, had been sitting in the main stand and ripped the memento out with a penknife. "I know they say we caused a lot of damage, but we also spent millions of pounds in the city that weekend which more than covered the cost of the damage."
THE TEST CARD GIRL
Carole Hersee was just eight years old when her BBC engineer father George took her photograph for Test Card F in 1967. The resulting image - of a little girl with long hair playing noughts and crosses with a rather sinister-looking clown - is etched in the subconscious of anyone who lived through the 1970s. It is such an icon that she was brought to life in the subconscious of Sam Tyler in Life On Mars. There is even a fan club, Test Card Circle.
Forty years on, Carole, left, is ambivalent about the image that earned her just 100. On the one hand, it won her a world record for being on television more than anyone else - an estimated 70,000 hours. On the other it was a frequent source of embarrassment as she was growing up.
"As a teenager it got a bit annoying, lots of papers wanting stories about you," she said. "And in those days you had banks of televisions in shops and no programmes showing, so there would be the Test Card picture all over them."
In adulthood, Carole became a seamstress, producing costumes for West End productions and films, including Flash Gordon and Dangerous Liaisons. But she still has Bubbles the Clown to remind her of her years in the limelight.
THE NEW MAN ATHENA POSTER
Clutching a tiny baby in his huge arms, male model Adam Perry seemed to epitomise the much-vaunted New Man of the 1980s. But the star of the iconic Athena poster turned out to be something of an unreconstructed cad. Contacted after the photographer Spencer Rowell auctioned a print of the original for 2,400 in London this year, he claimed to have bedded 3,000 women, fathering a son by one of them.
"I didn't find out he was mine until he was two because the mother had a boyfriend when I had a fling with her so I assumed the child was his," he said. "As a result I've barely seen him and never held him in my arms."
Rowell made 1m from the five million posters sold, and claims to have spent most of it on cocaine and private planes. Perry was paid 150 for the shoot in 1986, while the baby, Stelios Havatzias - now a law student - made 32. Perry is bitter Rowell earned so much, but Havatzias seems unfazed by his brush with fame. "I can't remember doing the poster, of course, and only recently realised how big the whole thing was," he said. "I haven't got it on my wall at university because I'm not sure I'd like to see a half-naked man in my room every morning and I'd probably get asked funny questions by any visiting girls."
When Erica Roe, above, bared her 40-inch chest and ran across the pitch at half-time during the England-Australia rugby union match at Twickenham in 1982, she instantly snatched the title of the world's most famous streaker from Lady Godiva.
Roe, who says she did it because she had had a drink, made 8,000 in modelling work. "I heard all this screaming and thought, 'I have to get off, the second half is starting'. But I quickly realised the roar was for me. Then I behaved like an egotistical bitch, put my arms in the air and went, 'Yes! Hi!' That was fun," she said.
At the time of her streak, she worked in a bookshop in Petersfield, Hampshire. She later moved to Portugal, to run an organic sweet potato farm with her husband.
THE GORBALS BOYS
Oscar Marzaroli's famous photograph of three cheeky boys tottering around in their mothers' high heels captured the spirit of tenement life in the Gorbals in the 1960s.
For years it adorned student bedsits - a testament to the fact that Glasgow's no mean city image always had a softer edge.
One of the boys - Ian Docherty, left, now a father of one - left Kidston Street in the 1970s to move to Toryglen and now works as a plumber in Motherwell. He first came across the photograph, snapped at the corner of Kidston Street and Florence Street, 17 years ago when it was featured in a Glasgow exhibition.
"We had no idea the picture had been taken," he said. "It's a bit embarrassing to look at it now, but that's what kids did in those days. I can't remember much about that time, but it's all happy memories. We were out all day playing."
Two years ago, Marzaroli's photograph was used as inspiration for three bronze sculptures by Liz Peden to remind residents of the regenerated Gorbals of the area's rich history.