How about a contest for photos of buildings? Submit your best shots of buildings from any angle or point of view. Don't forget to have fun!
Goal of contest is to submit a picture of origami. It should be the main focus in the photo.
Aka "Arabian Nights". Get inspired by the stories of Scheherazade, Sinbad the sailor, Aladdin, Ali Baba and many others.
Black and white photoes
Submit photos of anything red. The color red can catch your eye and it's usually kind of a "popping" color. The main subject should be red. Have fun! (if this suggestion gets used)