The Unstacker

I'm very much looking forward to the day Leif becomes interested in stacking things, since that would be an activity that would involve staying in one spot for **minutes on end** with little possibility of doing himself any bodily harm! To try to get him interested, I recently picked up this cool multicolored stacker at our local co-op (it's made from recycled plastic milk bottles). So far, however, Leif is only into taking the tower apart; he wants no part in putting it back together again. He is the Unstacker.