First off, thanks to the friends who commented below and made good suggestions for beatin' the blahs. I think weeks like this one are why God created chocolate.
Okay, now, I want a lab coat like Dr. Horrible's! And guess what? It's a leftover costume from Firefly - the Ariel episode. Regardez-vous:
And no, it was not I who figured it out. Among others, some of the cosplayers on LiveJournal figured it out. That Shawna Trpcic! What a little reuser/recycler she is!
(Oooh! While imdibbing to make sure I spelled her name right, I found out she's also working on Dollhouse. Good to see.)