Now came the tricky part, what to use. I've been trying to purchase less and reuse what I have so when I saw this old Slip-Cord backpack that had a busted seam, (I never really used it, Brent used it more) I figured that would do. Just trying to be more frugal!
First Brent and I decided how big he wanted it to be and then I cut the material.
I then sewed the bag together, while Brent took the pictures. He's commented on how much better he's getting and I agree.
After I finished sewing the bag together, we used some of the cord from the original bag, feed it threw the bag and tied knots on each end . Brent couldn't wait to load it up with his marbles. I didn't realize how many he really had!
Here's the finished product. It's not really fancy, but very functional and Brent loves it, so that's all that matters to me.