I also have a lot of Christmas fabric--can't resist buying FQs they're so pretty. I could never come up with a pattern. What I do is use the Christmas fabric when I want to try out a new block pattern or if I just feel like sewing and don't have a project that I'm working on. I made about a dozen 4" blocks, some 12" blocks; I try to keep them in the same "multiple" of sizes. Over the course of a year I've made enough Christmas blocks to put together for a decent size quilt. I do mostly scrappy quilts anyhow--get bored making the same blocks over & over--so this works for me. It also gave me a nice break to make a Christmas block in July LOL.