Temporary tattoos make memorable party favors at a carnival-themed party. The first step would be setting the image that you want to get tattooed. Set the best possible quality of the picture or design. You would also need to fix the size of the image, so as to determine how many images can be printed on a single sheet of tattoo water slide paper. select the food coloring style that could be easily transferred with spit or water. Set up a booth by hanging sheets or fabric from ropes suspended between trees and enlist a grown-up to play tattoo artist. Display blown-up designs so kids can select the ones they want.