My youngest kitty, Sasha, is two and LOVES milk rings! She will carry one in her mouth, bringing it to me to throw so she can fetch it and bring it to me again. It is not umcommon for her to bring one onto the bed (in the middle of the night while I am fast asleep) and drop it on my face! She also likes to play "hockey" with her rings on the linoleum floor. This game can last for quite some time! She often bats them under the appliances, and she knows they are there and sits there meowing at me until we go on a "milk ring hunt" and find those that have disappeared! She loves milk rings so much, that my neighbors save theirs for me and she currently has a stash of well over 50 rings! The neighbors have even written and illustrated a book about "Sasha's Big Night Out" in which she sneaks out of the house with her "secret milk ring stash" and trades them for kitty nip! It is adorable and will be treasured forever. Sahsa's older sister, Tabitha, who is 16 years old, has little to do with the milk rings and the games Sasha creates. Instead, she just looks at her as if to say, "Oh, if only I still had her energy."