I wasted countless hours waiting for coffee to drip using a GSI Java Drip, and eventually settled on the Big Sky Bistro Mug.

I'm still on my original one over a year later, it's been eaten by animals at night, I hear a wheezing sound when I fill it up with hot water, but I will throw some shoe goo on it before I head out again in a few weeks. I use it 2 times a day, Clips onto my panniers or rack, and I'm a master of a one handed rider now - If I didn't have the Big Sky Bistro riding through the 9 days of hell going to Yellowknife with little to no food, water, people - but bugs (LOTS) and bear, and bison - I would have lost my marbles...
further.

I wrote a review here on it:
http://www.tiredofit.ca/2010/01/big-...ffee-pressmug/

I can't find it at the local outdoors store where I picked it up from originally for $15 but you can buy it from Amazon