You need this great alternative to pins!
Wonder Clips have a wide opening for holding multiple layers of fabric which is especially useful for attaching the binding to a quilt. The base is clear and flat with 1/4" and 1/2" seam allowance markings. There are ten clips in a package.
Pins can distort the fabric and are hazardous to your feet when dropped. Wonder Clips do not distort fabric and the red tops make them easy to find on the floor if dropped.
Here's a short video demonstration.