When sewing on the road, it's nice to have something to keep extra needles and pins in in case you need them! And Altoids tins are one of the best things out there for little “travel kits” and such.

In this case, print the insert piece (you will need to use some supports under the pegs, and probably print with a brim), then cut a piece of foam to place inside it to hold all your needles and pins. Voila! :D