I understand that it's hard getting ideas for theme nights. When we have theme nights at our church, we do not choose the theme night to match the lesson but rather participate with our entire AWANA program. We make sure that the theme nights are something that all kids can participate in. We have a theme night each month and here are the ones that we are using:
Camouflage Night
B.A.R.F. Night (Bring a Friend Night) - we couple this night with Sports Night so that the children visiting will not feel left out because they can dress up too!!
P.J. Night
Crazy/Ugly Tie Night
Crazy Hat Night
Wacky Hair Night (This by far has been the favorite for all ages!!) - We actually had a Cubbie come in with a Smiley Face shaved in the top of his head. (He and his younger brother were getting haircuts the next day - buzz cuts)
Old Fashioned Night
Red, White, & Blue Night (Wear something red, white, & blue)
Hope this helps!!
Tootie