Every year I play a joke or two on my wife Robin. She'd be disappointed if I didn't. This year, I played two pranks. Robin laughed at the first one and gasped at the second.
First, I replaced an image of the two of us in a framed photo on her desk with a picture of Pee-Wee Herman. (See below.) We both love Pee-Wee, especially his first film ("Pee-Wee's Big Adventure") which was directed by Tim Burton. It's a masterpiece of cinematic art.
Second, I stuck a flat pillow with an image of a pug's head on it in our medical cabinet. When Robin opened the cabinet-door to get her toothbrush, she was surprised!