I saw your pictures of your Halloween dessert party and they are excellent.
Shezfrombermuda, my Event Manager was creative to the Nth-degree. I take no credit at all for that party. It was all him! And it turned out darling. Simply beautiful, ~sigh.~
I don't know who's working with you, but if you have a "theme" for your dessert party, let your planner know. They'll work with you to incorporate it as best they can.
For my last party at the GF, the Event Manager who was assigned to me asked me what sort of party I wanted. I told her that I wanted a party where my guests would truly feel like they were vacationing in Disney World. I explained to her that these were friends of mine from the Dis and thus they were true Disney fans.
My Event Manager listened to what I wanted and then selected a Mickey Mouse linen package. She told me that it was something new to the Grand Floridian and she thought it would work out well. Boy, was she right. The party really had a very fun Disney feel to it:
Mickey Mouse Linen Pattern:

Main Buffet Table:

Again, if you have a theme in mind and have the budget for it, see what your planner suggests. Personalizing the event makes it more memorable for you and your guests.