Help me find a multiplication toy.

I would like to purchase for my nephew a learning toy that I had as a kid. I can not seem to find it anywhere, and hope that someone here can help me out, since this is a sort of math-related place.

Basically, it is a multiplication (or addition) learning toy. The toy has a plastic frame, with the numbers 1 through 10 enumerated along the top and bottom in the normal format of a multiplication table. Aligned with the numbers is a square make of 100 elevated white plastic cubic buttons. When one of the cubes is depressed, you can see the correct entry for that cell of the multiplication table through the thin plastic surface of the cube.

Help me out here. Gotta make my nephew smart.