hmmm I am in the same dilemna I am working on dresdens with the 1930 reproductions. I thought I wanted yellow centers but then as I look at mine I like some to have red print or yellow print or blue print I love them all. I thought about black and since this is a group effort we are trading blocks I don't think some of them would like black as a center. I collect southwestern fabric especially Chile Peppers and one of my friends is PETRIFIED that I am going to have Chile Pepper Centers. lol. I told them we needed to have a signature fabric on it and she just about died it was SEW FUNNY. Post your pics when you decide which to go with. I like number two, four and the yellow.