As someone who started driving my parents out of their minds at age 5 by drumming on everything in sight, I can confidently say that ANYTHING can be a percussion instrument.

legs
stomach
butt
cereal boxes
light bulbs (don't try this at home . . .)
water bottle
any type of pipe
telephone
adding machine
clothing
mattress
garden hose
kelp
any kind of food
paper
garden shears
spouse
cats and dogs
fish tank
bicycle (lots of different drums there)

My ex-wife actually has an album credit for playing "scrap lumber". The bodran was being too boomy, and the studio was undergoing a remodeling project.

John