Lily is a collector (a pack rat, if you will) of all things big and small, and loved it when Caroline brought home a bag of rocks for her from her trip to the Smithsonian in Washington, D.C. Who knew a bag of rocks could provide so much entertainment? She loves to take them out of her pouch, line them up, count them, sort them, and then put them back in the pouch and start the whole process over again. Quite funny to watch. :)