Halloween Wedding This Month!

Hey there!

I`m looking for fun, simple, games for my guests to play at my All Hallows Eve reception. It`s less than a month away and between making my own dress, favors, invitations, masks, banners [you get the picture] my creative outlet is a bit fried at the moment.
Any suggestions?
I had heard of one game where the couple had witch decorations as their centerpieces, and who ever had the largest nose at the table got to take the witch home. Something cute along those lines is what I`m looking for [my centerpieces are already in the making, and they`re not witches.]
Does anybody know of any simple ways to involve my guests in our reception?
Games involving masks would be wonderful as it`s a masquerade ball!