My DH didn't want one and I had it anyway. Dissers ripped me apart- well guess what he loved it!
I did a Mexican theme. It was outside in the summer. I had a Taco bar, Margharittas, pinata, Christmas lights on all the bushes and trees. Sombreros and maraccas as decorations. It was a blast.
Another one I went to was very creative. It was an Animal house theme. We all wore Togas. The host decorated by throwing trash and a mattress on her lawn. The cake said "Eat Me" just like the movie. It was very easy and a lot of fun.
Another was a hawaiian luau. A lot you can do with that.
Most peole just do it in a bar but i thought these were nice and much cheaper
Have fun planning