We have huge live oak trees and too many squirrels. They are destructive to potted plants but we've been discouraging that with coffee grounds and/or cayenne pepper on top of the soil. But I do love to watch them scamper and jump...and our weiner dogs make great sport of chasing them but never catching them.
I used to hang dried corn cobs for them...screw an eye-bolt into the end of the cob then suspend it from a length of chain looped around a tree branch. Put it far enough out on the branch that it hangs clear of the tree...that way they have to work to get to it and you will see some antics for sure! One squirrel finally learned to pull the chain up until he could grab the cob then he would hold it and chomp away!
I wouldn't use the cobs now that I have dogs...mimom's story is a good lesson!