A math manipulative meant to help teach angles to students.
This game includes one bowling pin a hammer, base and various angle pieces of different sizes.
The hammer twists around nearly 360.
One player places the bowling pin around the base, the other uses the available pieces and estimates the pieces required to create the angle that aligns the hammer and the pin. Place the angle pieces between the blue and red sections of the base, swing the hammer to see if you were right!
To adjust the difficulty level, change the number of angle pieces available. Angles can be printed on the underside of the angle pieces.

I created this in 123Design Online after wasting a few cocktail napkins :-)