I have been making cloth banners for holidays, birthdays and seasonal celebrations out of fun fabric. I like the idea of having something re-usable, and they just have more of an energy and style than those paper things sold at party stores which are also usually then discarded and go off to garbage-land. I am planning on making a few coordinating table items and some napkins, so that I have a little party decoration set for some of the upcoming birthdays, and our seasonal table.
I found some nice 2-sided fabric at a quilting sale, which doesn't unravel or fray at the edges. I cut it into triangles and sewed the pieces onto bias tape. Each banner is about 8' long!