...but is it worth the trouble? I can quickly make whatever fittings or appurtenances I wish, but an 8-32 threaded pop-rivet JB epoxied into a 7/32" hole (NOT 1/4" - and no need to rivet it in, altho one may) works so well, why bother (I didn't)? I re-read the designer's blurb about "taking up volume" inside the stove and frankly, I don't agree that it is at all significant. Variation in trimming the cans to height - even a tiny fraction - will have a more significant effect on interior volume... not that even that should make any noticable difference. I used a height-gauge to scribe the cans because I have one (or two) - and there is nothing sacred about the 1.5" height anyway - consider it a guide. Use an 8-32 threaded insert pop rivet and make the cans about 1.55" high if volume is a worry... <grin> The other thing I found useful about the pop rivet is that the un-threaded portion lets me keep a stopper bolt long enough to be managable with my fingers yet short enough to only need a few twirls to open or close.<br><br>On the drill bit (#70 or thereabouts) vs needle construction - I merely snapped off a proper diameter needle at an appropiate length and put it in a pin vise <tap><tap> with a small brass hammer and precise control of location and diameter - too much of a hassle to use a drill bit that small at those angles and thin material. Smallest bit I keep in stock is a #60 anyway <grin>.<br><br>All the ones we made (varied the hole numbers and so on) seem to work very well - the lads are very pleased with themselves. First one took a bit of time, but then they flew together. Handy idea - and I like the cost (nothing - everything was "in stock" at our house, even the denatured alcohol).<br><br>The Stabil bottle idea of Bill's is great - but I think I have to get a smaller bottle of Stabil next time for that. I tried it out last night with a partial bottle (decanted the remaining Stabilizer into another bottle) and it was nifty. I think I will cut a better cap seal (gasket) that will hold up to repeated use, but otherwise a super idea. Not sure about extreme low temps and the bottle, but I'm sure it will be fine above 0 deg-F. If the lads continue to use these stoves into the winter, we'll come up with something cheap (free) and suitable.<br><br>Had a bit of aluminum flashing roll so that's what they used for wind screens... ditto hardware cloth (altho it was 1/4" mesh). Good thing I like tuna fish salad sandwiches...<br><br>Alternate (more complicated) ideas for safe and effective stoves are fermenting. I'll post anything if anything nifty comes to life.<br><br>Alternate opinions welcomed!