Try it, you'll like it!
Although we've had pretty good success with our previous method of water-drinking (see here), we decided to try having Buttercup drink out of a shot glass. As strange as it is to think about my baby girl drinking out of a shot glass (especially one that has a piña colada recipe on it), it seemed like a good idea so I tried it. It was so much easier for Buttercup that I think we'll stick with this method for the time being. Her little lips seemed to seal around the shot glass easier than with the plastic cup we'd been using. And her hands could wrap around it, too.