3 of my 5 cats, the younger ones, absolutely love these mice!  The first thing Max does is eat the tail... obviously a delicacy.  Then he gets to work on chewing off the head... quite violent.  That's when I pick it up, remove the "internal organs" and give him back the hide, which is just as fun to play with.  Fortunately he does not eat that part!  Frankie really gets going with these little guys.  She spears them with a claw and flips it up into the air, and then just sort of stands there... waiting for the attack.  She's a tiny, agile kitty so her movements when she jumps in the air are hysterical!  Yesterday I saw a mouse go flying across the balcony.  That was Rocky's move.  He loves when I throw one in a box.  He jumps in and gets this whole play thing going laying on his side or flipping over onto his back... again, hysterical!!  I will definitely work on getting a video of this!  They make me so happy!  And the price is great!  Saw a box of 20 for $7.59, which is way more expensive.  By the way, the rainbow ones are their favorites too.  Those are a plastic mold with the fur glued on, and have little beads inside that rattle when you shake them.  That's all I have to do to get those 3 precious furry babies to come running.