After making a few for friends and the girls, I made 20 for little A's birthday! I think I have the process down, and so am here to share it with you!
You will need:
one piece of duck cloth 8" x 20"
one piece of cotton quilting weight 8" x 20"
one set of Velcro 3" long
1 yard 1/2" double-fold bias tape in coordinating color
optional (for label): 1" wide cotton twill tape
iron-on transfer paper
Step 1: Baste cotton quilting fabric to duck cloth. I'm a big fan of the basting spray!
Step 2: Baste short ends together with a 1/4" seam allowance (or less).
Step 3: Round corners on Velcro. I just found my scrapbooking corner rounder and it works on Velcro! Much easier than eyeballing and cutting with scissors.
Step 5: Sew pokey Velcro to front and soft Velcro to inside top. Be sure to leave at least a 1/2" from the raw edge to the top of the Velcro. If you have a directional print, make sure it is facing UP where you sew the pokey Velcro.
Step 8: Using a round object (can you tell I sew in the playroom?), trace a curve at each flap corner...
Step 9: Fold in end of bias tape (like this), tuck snack sack in between bias tape, and overlap the tape about 1".
Step 10: Sew around the entire snack sack, stretching bias tape gently around corners. When you get close to the other bottom edge, fold in the ends of the bias tape...
Optional: To make a label for the bag, follow this tutorial from Patchwork Pottery .