I stumbled on this "Ghostie Garland" last year, and we had so much fun with it!
In addition to the provided template, I asked my kids what accessories they wanted to decorate their ghosts with. I found free clip art that matched their requests, and I printed that out as well. It was a lot of fun decorating the garland, and we hung it up over our fireplace. It made a great decoration!
This site has a few other crafts that look like fun:
I think we're going to try the Halloween Puppet Crafts.