Make:

Temporary Tattoos are always a big hit with kids, but the designs usually aren't that great - here's a tattoo kit for kits so they can make their own (or just use the stencils) - It looks like it's a pen with a motor, so you could make your own too... "Open up your very own pretend play tattoo parlor. This easy-to-use tattoo maker kit includes an electronic tattoo pen and funky stencils. Using soft, safe pulsating action, the tattoo pen creates realistic, washable designs with dramatic effects" [via] - Link.

Only $14!

Related:

• Powerbook Tattoo - Link.
• DIY Tattoo gun - Link.
• Kurt, the tattoo-robot - Link.
• Tattooing game for PDAs/phones & controlling race cars ... - Link.
• Laser-etched cases... - Link.
• Tattooed Shoes - Link.