Quick, dirty and cheap laser engraver

After playing a while with the “pocket laser engraver” I’ve fabricated folowing the instructable made by Groover, I want to make something bigger with things I already have in my possession. The only thing I’ve bought is a scanner (7 Euro’s at the second hand stuff shop). All the other things I have already in the house. This instructable is’nt an 1,2,3 step build plan because of the differences of things one has on theire shelf. It’s merely a guide on how you can do things.”