This Friday, I taught myself how to play the waterglasses. This is when you take a set of drinking glasses, and fill them all up with different amounts of water, and run your finger around the rim to play a note. I tuned a set of eight cups to E Major. I would've preferred C, but the lowest note on the cup (when empty) was low E, and the highest (when full) was high E, so I didn't have much choice. I should've used taller cups. I can play quite a bit, but for faster songs it's easier to just hit them with a pair of chopsticks, like a xylophone. I also need something to hold the glasses down so they don't slide around on the table. Suggestions?