Add pictures, patterns and messages to your clothing with discharge paste, a sticky white goo that discharges pigment. You can paint it on, screen it on, stamp it on, or use stencils!! See my other instructables for more.
Step 1: Materials
Discharge paste, findable at arts and craft stores. I forget how much it costs, but its like paint in terms of quantity needed.
Iron that can steam. Alternatively, you can produce steam with microwaves, stoves and ovens. I've never tried these methods, but theoretically they should work, too.
Discharge paste applicator, eg fingers, but more likely a paint brush, available at both arts and craft stores and hardware stores. Maybe even the SuPeR market if you get a meat baste-er.
Natural fiber fabric with pigment (not paint).
Optionally: cardboard to make stencils, or silk screen.