Throw/catch balls

No pun intended, but fans of typography will get a kick out of these throw/catch balls.

They come in a couple of colour schemes - you can also choose numbers - and are available in the US from the link above, and the UK from Revilo Toys. Why not start your kid recognising their fonts early in life?

It is hard to tell whether 'throw' is on one side and 'catch' on the other; or whether these are two different balls, though the colour change suggests the latter to me. On the other hand, there's no obvious way on either site to make a selection. If anyone finds out, do comment.