https://en.wikipedia.org/wiki/Smell-O-Vision
https://en.wikipedia.org/wiki/MiniDisc
Toshiba Twin S-VHS changer https://youtu.be/aEEYuJw7vFk
https://en.wikipedia.org/wiki/HitClips
https://en.wikipedia.org/wiki/Pocket_Rockers
0.85" / 22 mm HDD used in MP3 players
https://web.archive.org/web/20120718025547/http://www.toshib...
-- Computing peripherals --
https://en.wikipedia.org/wiki/CueCat
https://www.computinghistory.org.uk/det/12416/Logitech-Cyber...
-- Alternative computers --
https://en.wikipedia.org/wiki/Amiga_500
https://en.wikipedia.org/wiki/IBM_PCjr
-- Electronics --
https://en.wikipedia.org/wiki/Capsela
https://en.wikipedia.org/wiki/Heathkit
Grandparents had a Heathkit TV like this with an ultrasonic remote that could also be controlled by jingling keys:
https://www.nostalgickitscentral.com/heath/products/tv/gr250...
== Of course ==
Grandpa's Polaroid 350
https://en.wikipedia.org/wiki/Polaroid_Corporation#/media/Fi...