haha, i thought about that too...except not my kids, my auntie and uncle's, i'm 16. i would definatly rock something with dinosaurs and rainbows on it..
when doing stencils, it's always important to use some kind of spray adhesive between the stencil and the board, so no loose edges pop up and cause underspray, makes the stencil look really nasty. i do all my stencils with the aid of my computer. adobePS7 does the trick, it only takes about 5 minutes to tinker with the brightness/contrast then put it through the filters. the tough part is cutting the stencil out. just to make things easy for myself all my stencils are 8 1/2x11 or smaller so they can fit on computer paper, then i just take overhead transparencies (acetate) and tape it to the paper with the stencil on it. i think the one of my eyes took me about 5 hours in total to cut, but i've painted more than a dozen and sold them to friends and local art galleries for a good price. if you want to know anything else about stenciling feel free to PM me, or check out http://www.stencilrevolution.com
for a lot of info.