Last Friday I told you about the inkjet tattoos, a great alternative to real tattoos. Well I discovered another way to make temporary tattoos from Popgadget using henna, a hair dye, in a pen form. Henna Penna pens are available in a range of colors including emerald and traditional brown and black, and can be used with stencils or freehand. The pens are available for $25.75 per pen (from Nonstop Bazaar) so they are not exactly dirt cheap, but they are all-natural and not tested on animals, so you or your kids can play without fear, and they are far less expensive (and not permanent) as a real tattoo. Be warned, these are a dye, not stickers so they will actually color the skin and will take time to fade and go away. they are NOT able to be washed off so I would not recommend using them on places like your face.