Boston Keychain with built-in Thermometer!

Boston Plush Lobster Red Fabric Keychain with Detachable Keyring Animal Theme

Giraffe Pair In Nature Keychain With mini Pocket Sized Compass And Thermometer.

Vintage Koala Bear Compass / Thermometer Survival Zipper Pull or Key Chain Fob

Vintage EMS Thermometer Chrome Keychain Jacket Pull 2" Eastern Mountain Sports

Vintage Devon Thermometer Key ring Keychain Used

Vintage Thermometer Hayden Keychain

4 in 1 Outdoor Survival Keychain-Compass,Thermometer,Magnifier & Whistle