While you wait for the release of WarioWare D.I.Y., why not get your learn on? Following the beginner-level tutorials released last week, Nintendo has put together a series of intermediate guides to the microgame creation process. Study these and you should be able to hit the ground running, translating your ridiculous ideas to ridiculous games in no time.
Actually, F.Y.I., D.I.Y. forces you through a tutorial when you first begin the game, so you'll be familiar with this material no matter what. But you might as well learn how it works now and start planning your game designs in advance!