I was working on my drybox and I wanted a dessicant container to mount to the lid. 

There are plenty of great models available but I wanted to try my hand at designing one. It measures 2" X 6" X 1" with 2mm walls and 1mm slits.

The lid fits relatively securely but doesn't snap into place. For my use, this is fine, as the included mount keeps it shut. I may revisit this later, though.

Mount it with a 3M strip to the lid. Fits nicely in a 20qt Sterilite box.