Tiny Potter in My Chair

A potter wasp constructed this tiny vessel in the weave of a wicker chair on my deck. (For scale, that's a pine needle beside it.) I don't know how long their incubation period is, and I don't have the heart to destroy the offspring this charming little pot was meant to hold, but if it survives to the end of the season, I'll dislodge and fire it. Pretty sure that's B-mix...