psdtuts.com has a neat tutorial today on how to draw a glass half-full of bubbly beer in PhotoShop:
In this tutorial, we’re going to draw a beer glass with some beer in it. We’ll create the shiny curly glass with reflection, put some beer in it, add some bubbles, and finally we’ll make the shadow and the reflections. Meanwhile, I hope you’ll have some fun and learn some cool [techniques] too.
Click here to check out the tutorial by Eren Göksel.