Even though it's a bit early for Christmas cards-Iam writing this in June- I tested the stamps right away. The cling holds well with the acrylic block and the ornaments are clearly visible. I will try out 3-D cards by stamping the ornaments more often and after cutting them, attach them with foam pads. I am curious about the result, but I guess it'll work out just fine.
This stamp motivates one's creativity.
Have fun with it at Christmas time
Muecke 48 from Germany