I felt really silly on my daughter's second day of playschool/playgroup. I forgot to buy her a little lunch box to take with her, so I had to send her in with one of my old purses with her lunch inside. She thought it was super cool to have one of mama's purses, but when I saw it lined up with all the other cute lunch boxes, I felt embarrassed! Clearly my issue, not hers. But I decided anyway that a lunch box was what she needed, so I did a search on the net for ideas of making your own lunch box/bag and this is what I came up with. There were various tutorials that weren't actually very good, so I just decided to put something together by eye, with some oilcloth I had already had on hand from previous projects.
Some of the projects I liked from other bloggers were cute, here for example, but they left the edges of the bags raw and I wanted something more durable and tidy. There were lots of little things I would change if I were to do it again, but I think the general idea came out just right.