2. Cut out the colored part of your design. I use an x-acto knife on a craft mat but some folks use small scissors and you can simply cut on a piece of cardboard. Make sure you save the 'floating' pieces that you will need for your stencil. For example, the pieces inside the wheels....
3. With a warm iron, adhere the stencil to the shirt, waxy side down. One trick I learned for a really flat surface (easier to paint) and to stop the paint going all the way through to the back side of the shirt is to iron a piece of non-cut freezer paper to the inside of the shirt as well.
4. Get the 'floating' pieces you saved and one-by-one lay them in their proper place on your design. Again, waxy side down, press your warm iron on them to affix.
5. Using fabric paint, found at a craft store, paint around/over your stencil. If possible, paint into the center of the design as opposed to out out towards the edges. This helps to stop paint bleeding under the wax paper stencil.
6. Let dry. Some crafters report that they've had success peeling the stencil off right away, but I've been more cautious, letting the paint dry for several hours (even overnight).
7. Peel away the stencil-- very satisfying-- and reveal the design below. I cover the design with a tea towel and iron again. My fabric paint says to wait 72 hours before washing the newly printed shirt and to wash and dry inside out.