Easy Sun Laser/Engraver
This is a really cool way to easily and cheaply etch things into a piece of wood. All you need is the sun, some aluminum foil, and a magnifying glass. Who hasn't wanted a mighty log with their initials engraved into it? Or maybe a face!Ãƒâ€šÃ‚Â Anyone remember Ren and Stimpy?
[note!]Ãƒâ€šÃ‚Â Take care of your eyes, don'tÃƒâ€šÃ‚Â do this without protective eyewear, remember there areÃƒâ€šÃ‚Â concentrated sun particles shining directly into your eyeballs. No ants were harmed in the making of this post. [via]
5 instructablesÃƒâ€šÃ‚Â until the contest (win LadyAda prizes!)Ãƒâ€šÃ‚Â