These are fun bags to make but it takes me a good day to do one. I can't see how anyone can do them in a couple of hours. The ties alone take me a while to fold and sew.
Then there is the cutting of the fabric, ironing on the heavy duty Pellon. You are making two bags, one is the lining and the other outside. I also sew my handes 4 or more times across to make them very firm. When I sew them on the bags, I sew them 5 times on to the bag, then went I put the lining in that an another time, then the final is about a 1/2" down from the top. My bags will never fall apart, I have friends and family, that I think put bricks in their bags, so they have to be very strong.