You could cover it in anything including fabric or felt like I used for the larger pair - just leave about a half inch seam allowance and glue. (thoughtsfromalice.com)
Spread 1/2 of buffalo chicken mixture on the center of puff pastry, leaving a small, 1/4 inch seam on all edges. (savoryexperiments.com)
Use the iron to press an one inch seam along the other three cut edges. (3littlegreenwoods.com)