In reply to elliot.baker:
I have various sized Caldera Flissure two-part Clones, which roll up neatly into a Ti mug, or pan, whatever. The smallest is for a 250ml mug. I also have a 450ml mug, 750ml MyTiMug, MSR Titan, Trangia Mini, Trangia 1l pans. All made whilst developing the Clone script design tool*
For burners for the pans, I use a red bull/rexam 250ml trangia-style burner, using a conic inner wall, and burner jets on the inner face of the top, surrounding the central opening. For the smaller mugs, an aluminium bottle top stuffed with glass wool wicking.
You should easily be able to boil 500ml of water with 12ml of meths.
The MyTiMug clone weighs 35g. The Red Bull burner weighs 7g.
* It's quite nice to see how far the use of my script (now hosted with a nice front end at zenstoves) since it evolved more than a decade ago...
https://www.google.com/search?q=caldera+clone+script
https://zenstoves.net/PotStands-Conical.htm#ConeTemplates
Post edited at 23:38