I use something like that, a vanity case that is, and it has proved to be pretty resilient. It's like 2 cases that clip together in the middle and I use the top half for smaller things like my transmitter bits and pieces and picks and fuses and the bottom half for leads. I bought it in a charity shop for £7 and I've used it for a few years and it's been great. I forgot to mention, the top half also has a mirror so that I can preen properly before strutting my funky stuff.
Just like this one at the bottom of the page. https://www.shpock.com/en-gb/i/XK8IqnGtxkpTLmC9/2-tier-vanity-case-make-up-hair-dressing-case