Kindergarten backpack for a 3yo - with printed fasteners

This is a set comprising a sliding puller and a tear-shaped cord end to suit a small canvas backpack, like these that kids carry house shoes to kindergarten in.

These fit a 6mm diameter cord (should fit 1/4" cord too, for imperial-sized cords). Can be scaled to suit thicker cord, I don't think it'd work under 4mm though

Split STL and print the way up they are designed. The tear-shaped cord end screws together. The slider cap is press-fit and cannot really be disassembled after putting toge