you can be on your way to taking your own ir photographs with a digital camera, $10, and good ol' fashion sunlight!
the most important items:
-camera (digital better, but not necessary*) with MANUAL controls
-filter; specifically, you will want to start with an IR720 filter, sometimes referred to as ''R72'', ''R720''. i found a brand new one on amazon for $10.50 (included shipping)
*film cameras can just use ir film
not necessary, but veerryy helpful:
-white balance/grey card