I taught a class on a kaleidscope dresden plate a couple of years ago...It was alot of fun...These were appliqued to a square then sashed with triple stripe border and yo-yo cornerstones . What was fun about this was you don't know what each plate will look like until all 12 wdges are sewn together..there also was a single yo-yo at the center of each plate...I'll have to find some photos to show you...