I’m going to go out on a limb and guess that in the The Force Awakens, Carrier Fisher won’t be wearing her famous gold bikini. But if your girlfriend is willing to wear one, you’ll need a Jabba to go with it, and then you can play Luke. This is just the ticket.
This Jabba the Hutt inflatable is gigantic at 6′ tall x 10′ wide, and it’s intended to sit on your lawn. It’s not particularly scary, so I’m not sure it’s a Halloween decoration, and it’s not Christmasy, unless you put a Santa hat on it. It would be perfect for May the 4th, though.
The inflatable sells for $169.99(USD) at ThinkGeek and is one of those with the air pump built inside it. I think I could come up with a sweet slave Leia jack-o-lantern to Halloween this thing up a bit.