One of my favorite chores as a kid was cleaning tack. It smells good and it's kind of soothing. I cleaned Annie's harness this morning and Kaity got in on the action. She helped for quite awhile and then said "this is fun!" I agree. And, it can be her new personal chore.
PS - Cleaning Annie's tack didn't take any time at all. When I was a kid, it always seemed to take all day. I guess that's the difference between two ponies and one and having a smaller pony.