Tamagotchi: Devilgotchi

This palm-sized device came from the country known for its technology – Japan. The Tamgotchi behaved like a pet and needed your constant attention. The most rare of the bunch is the Devilgotchi and it was quite addictive. However, the graphics are now considered laughable, as they are extremely outdated compared to the games available nowadays. Still, Tamagotchi had the last laugh as many of them are sold for $600.

Nickelodeon Gak Copier

Last on the list is Nickelodeon’s Gak Copier. Children who like to experiment can make gak from their own kitchen, or they can purchase one from Toys-R-Us. This is a novelty and it doesn’t mean much, but the said copier photocopies pictures on the putty-like material. That’s all it does but it retails for as much as $300 online, and that’s something! And years back, these pieces of memorabilia may not cost much, but the fact that production has stopped on these, it somehow makes people want them more.