Calling all goblins and ghouls! If an October 31st wedding is what you are planning, we have some ideas that are right up your alley:
Start with this fall-inspired wedding invitation by weddingpaperdivas.com
Add a custom Halloween stamp by zazzle.com and your guests are sure to know what to expect.
The bride can carry an orange-tinted bouquet like this one comprised of calla lillies, found on theknot.com

Don't forget to incorporate pumpkins into your wedding, possibly by carving your monogram or new initials. Photo from theknot.com

Work your theme into your food. Mashed potato ghosts and black and orange details on the wedding cake, image from bridetide.blogspot.com