Back when I was doing freelance videography work I eschewed the standard $150 videographer's camera bag for a $20 fishing tackle cooler bag from Wally World. It came with two of those clear compartmentalized trays in it, which I removed and used for other things.
That was nearly 15 years ago! I still have the bag (holds music recording gear) and both the trays. One tray holds spare parts for my various guitar building projects, the other has seen much more use holding unusual bits of hardware and has lived in my various garages/basements/workshops/wherever I've done my DIYing over the years.
BTW I don't know if they still have them, but back then Wally World also had hardshell gun cases for like $10. Probably big enough to very comfortably fit two pistols. This was back when I did not own a gun but did own a nice SLR camera, and so I cut out the foam inside to accommodate my camera, accessories, and several smaller lenses.
Long story short, lots of fun improvising and money-saving to be had by getting creative in the Wally World sports/outdoors section.