The process is quite easy so I thought I'd share it here with you. These aprons can also be used in the kitchen with children who love to bake or cook. Just change the theme from Art to Kitchen.
I bought some raw canvas fabric and cut it into three pieces measuring 15" X 30". Then, using fabric paint, I had the kids print it with their feet and hands. This is best done outside where the paint can be washed away with water if it gets on areas other than the canvas. Once the paint was dry, I heat set it with an iron.
Using a pattern I drew on tracing paper, I cut out the shape of the apron from the printed canvas.
The length of the apron is 22 inches. The width is 15 inches and the armhole is cut out of the top section at 3.5 inches from each side and tapered out to the edge of the apron at 8 inches from the top.
From the left over 8" X 15" piece of canvas, I made a pocket for the front of the apron. I folded the raw edges all around the pocket under 1/4" and pressed them. I then sewed the top pocket edge to finish it nicely. Then I pinned the pocket to the front of the apron and sewed it along the two sides and the bottom, leaving the top open. I used some coordinating fabric to iron on each child's name using Heat n Bond.