my 07 invites where all papercraft to save money and thanks to Ray O'Bannon people still have them on display when i go to their houses. I used the deluxe coffin boxes to hold his monsters then added a rolled up discount coupon from the local spirit store and added a custom parchment on top with the party info check them out
here

if you wanna make some you can get the papercrafts here

and the parchment blank is here it is a pdf the layers are editable in photoshop cs2 or higher.