On my first Christmas with my then girlfriend (now spouse) I wanted to give her diamond earrings, but I didn’t want to just give her a box with them in, I wanted to do something different.  So I racked my brain and did some searching and found a small teddy bear wearing a t shirt that said “I Have A Secret”.  So I put the diamonds in its ears and wrapped it.  When they opened it, it took them a few moments to figure it out, but the surprise was worth it.