(Probably why I married him.)
So, we made a little background (of SPACE!) out of black cardstock, and I drew some stars on there.
We started without much of a plan.
Our "plan" was for me to sculpt a unicorn head out of a lump of Play Doh.
Everything after that was just creative momentum.
My only tip, other than using a tripod, is to try to set up so you won't need a flash...because there were a lot of frames that would have been captured faster if we didn't have to wait for the flash to charge.