All i did was:
1) trace the outline of your picture with some tracing paper (ie baking paper)
2) go around the outline on a piece of card (like the ones you use to file stuff with)
3) go over the imprint with a pen
4) use a stanley knife to cut around that.
Its only basic but it worked ok for a first attempt. I know there is a way of getting a better more complicated outline using Photoshop and also using acetate but check out www.stencilrevolution.com
they have all the answers there if you look hard enough. Heap of stuff on stencils, stickers, screen printing etc..
Mark: 'Timo how do you sleep in Finland when it's light all day long?'
Timo (Fireside Lodge pimp) 'You just close your eyes'