A 450-mil double-walled Snow Peak will nest inside the Snow Peak mini solo pot, with room for the stove and a few extras (but you'll have to stash the fuel cylinder somewhere else). I like to have my coffee while dinner is cooking and still warm after I'm finished.

Somewhere, maybe on another forum...someone had a post that they found the disposible coffee lids from the local Kwik-E-Mart would fit on top of a SP double-walled mug. Nice.....