Magic Card

Well, maybe not "magic" per se, but I've seen this technique called that. It's simply the same image stamped twice: once on cardstock and coloured, then again on clear acetate. Bind them together at the top and make a slider card to insert it into.
Here's the Copics I used to colour it in:
I guess if I were to personalize this, I would lift up the acetate and write the greeting or sign it on the white cardstock.