Sippy cups are a must, not just for young-uns, but everyone young, young-at-heart, and old. They make spills history, to the great relief of anyone responsible for keeping a home clean. Until now, adult sippy cups were acrylic, which might have been off-putting to some. But now, for under $10 from Crate & Barrel, they come in glass and aren't even called sippy cups ... they are called To-Go Tumblers. They are dual-walled for terrific insualtion. And for a couple of bucks, you can get a pair of straw cleaning brushes.
Link to Crate & Barrel Website