I made this card for my boyfriend a few years ago. It has tabs to pull which reveal a 1-Up mushroom as Mario jumps and a happy birthday message which comes out of the pipe.
The scene inside is made up from layers of coloured paper and corrugated cardboard for the boxes and pipe. I printed a picture of Mario as I didn't have enough time to draw one.
A "sweet" way to invite friends to attend our "Sweet One's" first birthday party!