I like repairing old mice. Prepare yourself, though. They can get pretty disgusting sometimes. You'll likely find hairballs and a gummy, slimy substance inside. You can use a wooden toothpick to get into the cracks and crevices to get everything out. I've found that most dead mice aren't really dead at all, just dirty beyond the point where they can still function.
Apple IIe IIc IIGS. Mac 128/512k->Plus 2xPlus SE. Dismantled IIci LC580 6320. Frankenmac Q700/IIvx, 631CD+040, 7500. 6100/60AV /66DOS 6116CD. 6500 7600 9500 G4DA533 G3iMac700 PB150x2 1400