My daughter starts preschool in the next couple weeks so we've been trying to get ready for school. Saw a cute tutorial on Pinterest for reusable snack bags: Snack Bags Tutorial
My tutorial below contains most of the same information but I did everything in bulk to make a set of 6 bags. I found these are much easier for little kids to open and you can squeeze more in the lunch box with bags rather than tupperware. They are not water tight though.
Approx. 5/8 yard of outer fabric (I dug through the remnants bin and found this cute bunny flannel)
Approx. 5/8 yard of inner fabric (found a coordinating pink glitter flannel, I wasn't concerned with glitter since it would be underneath the vinyl, so far it's worked just fine)
Box of fusible vinyl (my box said "great for lunch bags")
18" of velcro
It cost me approx $2 per bag by using a coupon for the Vinyl and getting the fabric from discounted remnant bins.
Prewash and Iron your fabric. I began by ironing my vinyl to the inner fabric covering the whole piece, only takes a few seconds to fuse. Follow the directions on the box.
Then I made a template that was 6 1/2" x 14". Cut out 6 pieces of inner and 6 pieces of outer fabric using the template.
Place a 3" piece of velcro (soft side) on the vinyl side of inner fabric, about 3/4" down from one of the short sides.
Sew the velcro on
Place the inner and outer fabric right sides together. Sew around all the edges, leaving a 3" gap in the middle of one of the long sides for turning. Clip the corners. Turn right side out. * I use 1/4" seam allowance on everything*
Fold up the end without velcro about 5.5", pin in place
Attach the stiff side of velcro to the soft side, fold the flap down and mark where your other piece of velcro needs to be sewn.
Sew the velcro in place.
Sew around all the edges to finish them. Start and stop sewing underneath the flap, to hide your stitches. Do not put in dryer, vinyl will melt.