Retro video games are a popular theme right now, and even while celebrating something – your wedding day or Christmas. Here’s a craft for Space Invaders lovers. You’ll need printed images of the invaders, an exacto knife and some ball ornaments without any pattern. Print you images and tape it onto a piece of black contact paper. Cut out the images and stick them on the ornaments. To stick them better start attaching from a small corner and then spread all over. Voila, any video game fan would be pleased to get such an ornament or see it on a tree.