From PEOPLE Magazine Click to enlarge
MID-'70S

CB RADIO

Drivers delight at inventing "handles" and chatting with their "good buddies" on the road.

1974

RUBIK'S CUBE

Invented by a Hungarian architect, the brain-twisting toy has since sold more than 300 million units worldwide.

1975

PET ROCK

These low-maintenance "pets" land in Newsweek and on Johnny Carson.

2002

CROCS

Millions of Americans—including Mario Batali and Michelle Obama—go crazy for the Canadian spa shoe.

1982

JANE FONDA'S WORKOUT

Legions of housewives "feel the burn" at home. Leg warmers not included.

2004

LIVESTRONG

Lance Armstrong makes fighting cancer cool—and ubiquitous. There are now an estimated 70 million yellow wristbands in circulation.

2008

SNUGGIE

With a reported 4 million sold (that's nearly $80 million worth of warmth), the blanket with sleeves spawned more than 500 Facebook groups and hundreds of YouTube parodies.

1998

BELLY SHIRTS

Thanks to her abs-baring top in the "Baby One More Time" video, Britney Spears liberates belly buttons the world over.

  • Contributors:
  • CONTRIBUTORS Elaine Aradillas,
  • Lorenzo Benet,
  • Brian Braiker,
  • Paul Chi,
  • Champ Clark,
  • Antoinette Y. Coulton,
  • Mark Dagostino,
  • Shruti Dhalwala,
  • Mary Green,
  • Wendy Grossman,
  • Liza Hamm,
  • Jessica Herndon,
  • Julie Jordan,
  • Amy Elisa Keith,
  • Kristen Mascia,
  • Farah Menass.