Antigravity

After many hours of research and scientific study, me and a friend came up with how to make antigravity. Cats always land on their feet, and buttered toast always lands butter side down. Put buttered toast on the back of a cat, and the result is antigravity. Then we thought that if you put sone torque on the cat when you threw it you could get a perpetual corkscrew. Maybe this is the answer for a perpetual motion device.?