There is a whole series of small puzzles, called Woodiks. All are mechanical with gears and other moving parts.
The FROG is one of our animal puzzles. When you move the lever in the back, the frogs hands wave and he moves his legs. So cute! 11 pieces, no glue required, all materials included in the kit.
A great collectible and can also be hung up so could be a nice ornament for your Christmas tree!