Yeah, these things are addictive! Ive made them from tiny tins, like votive candle bases, and candy containers to tuna cans. I use a bit of fiberglass insulation scraps as a wick and an old tin one tablespoon measure to gauge my alcohol amount. Like you I use a set amount and time my water boil of the Sierra Cup. Three pieces of aluminum patching shingle hognose ringed together make a wind screen and fold up flat (just ring the inner edges so you have a 3 flat layout to stand and adjust as needed). My current take along uses an old US canteen 'stove' base rebent a little to hold a cat stove and nests in the bottom of a German style mess kit along with dried food, tea, etc. (whatever fits). Fuel is carried in its original HEET yellow plastic bottle (NOT the red bottle stuff), but you can use drugstore 90% rubbing alcohol; NOTE: the 70% works but isnt near as good.
BTW, my stove with 2T alcy will bring the cup almost to a boil (bubbles are up the sides, not a rolling boil) in a few minutes. It is a heat suitable for me to make tea or instant coffee, or to premix a batch of Ramen and finish off after a little soak with another burn (add some curry powder to zing it up).
