Atari Jaguar - recommended by dentists everywhere

The Atari Jaguar was Atari's last videogame console. It was a failure, due to poor software support and a very complicated architecture. Once abandoned, Atari sold its case design to a manufacturer of dental imaging devices, who used it to create the Imagin HotRod dental camera!
Even the cartridge slot and cartridge molds were used as expansion memory modules.