This article is about the 1980's toy series. See Glowworm for the insect larvae.

Glo Worm was a stuffed toy for young children, designed by Hasbro's Playskool division, and made in Pawtucket, Rhode Island. Introduced in 1982, the plush body contained a battery-powered device that, when squeezed, would light up the toy's vinyl face from within, creating a soft glow.

Since the original toy was such a success, Hasbro released a series of story books, night lights, videos and other merchandise that continued until the early 1990's.

In 1986, Playskool released a number of "Glo"-based toys that glowed but were made of hard plastic. These toys, collectively known as "Glo Friends", were so successful that American fast food chain Wendy's in 1989 also released a series of 12 hard plastic toys to advertise their chain. Their names were;

• Glo Snugbug
• Glo Snail
• Glo Doodlebug
• Glo Bug
• Glo Grannybug
• Glo Clutterbug
• Glo Bashfulbug
• Glo Butterfly
• Glo Bopbug
• Glo Cricket
• Glo Skunkbug
• Glo Bookbug

Additional characters included:

• Glo Nuttybug
• Glo Sniffle Snail
• Glo Firefly
• Glo Hopper
• Glo Spider
• Glo Bopbug
• Glo Flutterbug
• Glo Turtle (shell opens to carry Glo Friends)

http://www.80stoysale.com/glofriends.html
http://www.aliviastoys.com/gloworms/gloworms.html