I want to add permanent storage for my CyclePump and tire repair kit, and I am looking for inspiration and ideas. I was thinking of getting a Givi toolbox, but the way my Jesse Luggage rack is set up would make access difficult, so now I am thinking about how to repurpose the odd wasted space in my AltRider tail luggage rack.
As you can see in the pics below, there is roughly 7x7x3 inch space below the top rack.

I don't think I have the fab skills to create my own metal or plastic box. Does anyone have any ideas on what I could use to store tools in this space that would be waterproof?
As you can see in the pics below, there is roughly 7x7x3 inch space below the top rack.


I don't think I have the fab skills to create my own metal or plastic box. Does anyone have any ideas on what I could use to store tools in this space that would be waterproof?