No adhesive tape, string or rubber bands, this plastic container has a built in locking system!!!
(PS. i hope this simple instructable does'nt already exist...i looked all over the site to make sure)
This is an old DIY i came up with a few years back, to store my paint brushes and other art supplies. Basically i used to ride a bicycle 16km to art school for the first few
years i was there. I needed a container that would keep my paintbrushes and paints safe in my back pack.