So easy, even I can do it!
You will need: masking tape in various colors, scissors and baking paper. Draw your silhouette (or any other shape) onto the baking sheet. Paste strips of masking tape over it, it doesn’t have to be neat but they must overlap. Because the transparent nature of the masking tape you can now easily cut out the form with a pair of sharp scissors. Pull the masking tape from the baking paper and paste it where you want! (via)
And Voila! Holiday gifts anyone??