I just ordered an XL 2P bothy custom from Even at TerraRosa.
http://terrarosagear.com/bothy-shelter/
Apart from AndrewA who made his own from UL cuben fibre I wonder how many others are actually going to be carrying one. Mine will be a little wider and a little longer than the standard because I have very long legs and wide shoulders. I am having Evan add a short sit pad at each end so if I am solo I can put my rucksack at the other end to help hold it down in very windy conditions. Getting a bothy because I may have a tadpole tagging along for a week-end next ski season and I want to be absolutely prepared. Also I'll take it to the USA/Canada/Alaska with me and the standard size won't allow the puffy down clothing to fully loft. I'll also cut a couple of bits of CCF as sit pads and slip them into the back of my daypack in case I forget the inflatable