1. Buy some bedsheets (preferrably sized to fit your bed). Wash ’em.
2. Buy some fabric dye – obtainable at any fabric or craft store.
3. Find a bucket.
4. Add water. Add dye.
5. Twist up your bedsheets all funky-like. If you’re ambitious find some big ‘ole rubber bands to wrap ’em up with.
6. Dunk sheets in bucket a few times (check the dye bottle or the web to see how long you should soak ’em – no not here – find some other site)
7. Let ’em dry for a day (or two).
8. Hang ’em on a clothesline to cure if you got one, else use a drier on a low-temp setting.
9. You gotchyo’self funky-ass tie-dyed sheets! (wash cold, yo.)
note: Anyone who does this should also check to make sure the dye isn’t toxic. Most fabric dyes aren’t, but any of the powdered kind could be raw pigment, which is highly toxic (don’t believe what your coworker says when she claims that it’s “inert” or “inactive” metal and therefore safe enough to even eat… she’s horribly misinformed!)