How to Make a Throw Pillow Cover

To create the stencil, simply tape your freezer paper (glossy side down) over your pattern to keep it firmly in place.
Then, with your surface protected by a cutting mat or cutting board, use an x-acto knife to carefully cut through the freezer paper. Remember, you are making a stencil, so preserve the centers of the letters and all 'white space' while cutting.
After cutting, you're ready to position the stencil onto your fabric or pre-made pillow! I used a piece of basic canvas drop cloth to make a simple pillow sleeve for a pillow I already had. If you'd like simple instructions for sewing a zippered pillow cover, see my how-to here!
Once the stencil is in place where you want it, carefully iron over it to adhere it to the fabric. Do not use steam when ironing. And remember to add letter centers you carefully cut before.
It's very important to make sure all the edges of the paper have been securely adhered to the fabric.
Next, take a small paintbrush, along with the craft paint of your choice, and gently paint over the stencil! Be careful not to use too much paint so it doesn't leak underneath the stencil.
Once that's done, let it dry, then gently peel off the stencil!
Since I just made a simple pillow sleeve, I just had to sew the ends together and it was done!