Always on the lookout for new fitness gadgets, the Bodyblade has grabbed my attention. The Bodyblade ($50-$160) is a tool that claims to use up to 270 muscle contractions per minute, and doesn't bulk you up. Basically you just take the long blade, shake it by pushing and pulling front to back or side to side, and then try to match the movement of the blade as it oscillates back and forth. And Read more