Instead of the hold the note challenge, we switched it up and have both girls laying facedown and they have to hold a tennis ball between their feet while I tickle. To make it more difficult on Gianna she is still in nylons too! I tickle both girls ticklish soles and toes with my fingers and all the tickle tools while they start tickling eachothers upperbody just for fun until one of them drops the ball and gets tickled by everyone. Eventually they both drop the ball and start tickling each other while Im still tickling their feet :)