THAT^^^^^^ was gonna be my suggestion as well.
IF you have a vacuum sealer, that's another option. We're smoking 4 butts this weekend to be used next weekend at a Cub Scout Campout. Gonna vacu-suck em and store. Then we'll just drop into hot water next Saturday to reheat.
OR.......why not just cook them on Saturday overnight, get up on Sunday, wrap and cooler them and then pull right before the event? That's EXACTLY what I'm doing for a graduation party this Sunday. 20 butts cooking tomorrow overnight and then hold in cooler until ready to pull the meat.
18.5", 22.5" OTS
Large BGE (chambersuac's)
The Fiery Furnace (chambersuac's)
Big JT's Smokin' BBQ Competition Team