powdahs photo on Instagram TIP: Heres an easy way to make veins using red cotton or wool. This technique has been around for many years but Ive never seen anyone use it directly on skin. Pull some red wool apart so you see the individual fibres. Stick them down to your skin with prosaide or latex. Use a needle to adjust the shape while the glue is still wet. I made a quick infected zombie bite using this technique but you could use it anywhere.