How-To: Make a cheap portable espresso machine (Engadget )

"I spent the weekend trying to design a small espresso machine that you can make from readily available parts. What has a homemade espresso machine got that an $800 Williams Sonoma special doesn’t? $770 dollars in your bank account, high-design PVC tubing, and a caulk gun. You probably have a caulk gun anyway, so let’s just make that $785 in your pocket and a fine piece of caffeinated gagetry that you can impress your friends with.

A caulk gun? Hey, if it’s good enough for Taco Bell guacamole and sour cream, it’s good enough for a fine and delicate espresso, right?" -- www.engadget.com