Photo booth costumes / masks - what's cool ?

After doing a few photo booth sessions at weddings last year on request I've decided to formally include them as an add-on. (If you're curious about what I offer, how the photos look see: http://www.christopher​stevenb.com/photo-booth ).

My question is: what are some must-have masks / costumes / accessories for a booth in 2014/2015 ? Of course there are regional differences, but for those of you that offer open-style booths like this, what have you noticed is popular with wedding / event guests ?

(edit: whoops--looks like the comment I responded to was deleted. Just to clarify my bizarre comment below, that person suggested 'horse heads' were in. That's right: horse heads).

Maybe it's related to that hurricane sandy horsehead runner (see: youtubz). Strange ! Thanks for the tip.

I had a wedding that the entire bridal party came in with horse head masks and the first dance started with the B&G wearing the horse head masks . Go figure...

Mustaches on a stick.
Feather boas.
Hats and masks and props made of craft foam (check Party City, Joann, etc).
Giant plastic glasses, colored plastic shutter-shades.

If it's in December, then some seasonal items too - Santa hats, giant plastic candy canes, etc.