Print pictures on old book pages. Looks amazing. You could use a book that has special meaning with the picture or maybe sheet music. Perhaps you would like your wedding picture placed on your favorite song from your wedding. Would make a great gift too.
Make a backyard bowling alley. Add food coloring to clear plastic bottles of water. Use party streamers as lane margins. Add glow sticks for night bowling. (These would make great outdoor table nightlights also with the glowsticks, gonna try it!
Memory Candles: This is such a fun way to display photographs! The technique uses black and white photocopies and transparent contact paper to transfer images to glass votive candleholders. What happens is that the black ink sticks to the contact paper.