This is the simplest DIY of all time. Seriously. I had been looking for some cutesy polka dot wrapping paper for a couple of photoshoots and couldn't find it so I made it myself. I used this same technique on black paper too for a photoshoot for my paper flowers (see below). This DIY is featured on Brooklyn Bride today. The full instructions are there, but photos are the best description, non?
One little tip. White stamp pads are kinda hard to find in stores. Order online! Here's my recommendation over at Amazon. And you can find the paper flowers in my The House That Lars Built Etsy shop.