Johnny Chung Lee is not your average video gamer. When Lee, a bespectacled computer science graduate student at Carnegie Mellon University, in Pittsburgh, bought a new Wii gaming console, he wasn't content to burn endless hours playing the tennis, bowling, and golf games that came with the popular system.
Instead, he modified his Wii to perform a variety of simple tasks that, together, can mimic expensive technology -- tech often out of the reach of the average classroom teacher. Then he posted the instructions, and accompanying video, online.
For instance, with about $50 and a trip to Radio Shack, Lee can show you how to turn a blank wall space into an interactive whiteboard -- savings: about $1,500. Another project he devised instructs intrepid hackers in the best way to create a steadycam for stable video work. Cost: about $14.
Lee's a classic do-it-yourself guy, part of a growing movement of people who are extending consumer appliances beyond their original purpose, or finding new purposes altogether. Teachers, too, are natural DIYers. Consider the enterprising teacher who demonstrates model rocketry using a coat hanger, an inner tube, and a soda bottle, or the crafty fellow who builds a hovercraft out of an old CD, a balloon, and a soda-bottle top.

Keeping students engaged with hands-on projects can be especially challenging with limited resources and changing curriculums, but here are a few sources of inexpensive tech hacks, perfect for teacher-student collaboration:
The creativity at the faire wasn't limited to hardware and electronics, either. There were tables of people silk-screening their own designs and creating new things with old cloth and thread. The overall lesson of the day: Ingenuity and creativity is something we all possess, and, as with any other skill, your inner DIYer can be cultivated.
What makes DIYers special is their enthusiasm and their willingness to share their expertise. DIYers are truly lifelong learners and teachers. They don't always realize it, though -- they're too busy having fun.
Cost: Materials vary based on project.
Time to set up: Depends on project.
Links:
[1] http://www.edutopia.org/geoff-butterfield-content
[2] http://www.cs.cmu.edu/~johnny/projects/wii
[3] http://www.steadycam.org
[4] http://www.instructables.com
[5] http://www.makezine.com
[6] http://www.howtoons.com/toon/the-infamous-marshmallow-shooter
[7] http://www.teachclever.com
[8] http://tech.savvyteachers.com
[9] http://makerfaire.com
[10] http://www.edutopia.org/international-exchange-online-collaboration-projects
[11] http://www.edutopia.org/classroom-science-little-shop-physics
[12] http://www.edutopia.org/tech-teacher-cut-Web-noise
[13] http://www.edutopia.org/west-hawaii-electric-car-project-video
[14] http://www.edutopia.org/clearfield-high-school-technology-video
[15] http://www.edutopia.org/kindergarten-project-based-learning-video