No cookie-cutter costumes here! Our sweet cookie sheet begins with lightweight foam core and silver poster board. We tied a ribbon wrist loop to the cookie kid's spatula so she has a hand free for trick-or-treating.
THE COOKIE SHEET On the back of the poster board, pencil a line parallel to each edge, then make a cut at each corner. Turn it over and fold along the lines (a yardstick is a handy folding tool). Overlap and stick the corner flaps together with doublesided tape, then trim off the points.
Use a craft knife to trim the foam core board to 27 inches long and round the corners. Attach it to the back of the poster board with double-sided tape.
THE COOKIES Duct-tape the brown craft foam together, long sides adjoining. Draw a large cookie on the taped side, then cut it out. Trace the face opening onto the cookie sheet. Score the line with a craft knife, then go back over it until you've made a clean cut through the foam core.
Cut out 4 smaller cookies (we traced a 5 1/2-inch cookie cutter) and 3 red craft foam buttons. Stick the cookies and buttons in place using double-sided tape. Add details with the dimensional paint. Let it dry for at least 4 hours.
THE SHOULDER STRAPS To work on the back of the board without damaging the decorated front, lay it on 2 folded towels. Cut the ribbon into 2 equal lengths. Using duct tape, attach the ribbons
halfway down the foam core.
Stick 3 Velcro strips on the lower corners of the board, then have your child try on the costume.
Cross the straps over her back, then pull them down. When the face opening is at a comfortable level, stick 2 Velcro strips to each strap where they'll stick to the Velcro on the board. Trim any excess ribbon.