I found this large pupa under a board beneath a walnut tree, while clearing out the old kennel. Looks kinda like a slowly-wriggling dog turd, yes, but ought to turn into something interesting.

A little digging on the internet shows that this is likely either an Imperial Moth or Regal Moth, both having 4″-6″ wingspans. I’ve got the pupa now in a humid ventilated container, out of direct light, and will be waiting and watching with camera nearby over the coming days.