Looking for a laser project that is a bit on the complex side, have a look at this Laser Image Projector.

“This is basic instructions on how to build a portable image projector that uses a green laser instead of normal light. The laser permits images to be cast great distances, and doesn’t require focusing - it’s always in focus.

Materials Required:

* Green laser module 10mW+
* 1 solid length of wood (~90cm)
* polymorph pellets (or a willingness to create lens holders from wood, plastic, etc)
* concave and convex lens. You can get these from old disposable cameras which camera shops will throw out by the dozens.
* Hardware for attaching rail to wood (bolts or screws, depending on method).

Optional Materials:

* Dinkle rails, with 72mm rail modules (x4), and the mounting feet (x8), available from http://www.altronics.com.au/ (note, you may find a better way of mounting the parts, but this one works for me).
* perspex or pcb 72mm with for Dinkle mounts.

Tools required:

* Drill
* Jigsaw or handsaw
* Hole making bits for drill (if using wood to create lens holders)”