Thumby is small and can be hard to find when it's lost! To protect the Thumby enclosure and keep from misplacing it, using a case can be a great option.
During the Kickstarter, special edition Thumbys were packaged in gameboy game cartridge cases, and these continue to be great to use in a pocket for carrying. @dardennda showed off their Kickstarter order highlighting the special edition Gold Thumby in a case:
Some sewing skills by @Abracadabera on Discord were used to make a soft Thumby case:
Surprisingly, toothbrush cases work perfectly for the Thumby size. @Adrian 2 Cool got enough for all their Thumbys:
Mint cases can also fit Thumby well, and with some customizations @hemlockmay created a wonderful gift that highlights their awesome single or 2-player game Umby & Glow:
Where you can't repurpose something for a carry case, you can design and 3D print one. This case by @FadedCrimson on Discord is designed to carry two Thumbys on a keychain:
A smaller 3D-printed version designed by @John_Wet:
You can also wear Thumby to carry it with you. Check out these Thumby jewelry designs!
Or maybe you just want a protective case: