I love how the pineapples look on these gauzy towels. And the process to make them was super simple to boot! You will just need a small potato, some yellow and green craft/fabric paint (I used Martha Stewart acrylic paint in Pollen and Diving Board), and some gauzy flour sack towels or plain white kitchen towels (I picked mine up at Target for $3.99 for 4 towels).
I cut my two shapes out of my potatoes. One side became the pineapple bottom (where I just cut a small crosshatch shape) and the other side was my pineapple tops (this was just free formed, so feel free to do what you think looks best). I also cut a small notch out of each side on the back of the potato so that I could grip the stamp better.