These simple ramps have holes and slots to fit screwdrivers in a toolbox drawer, while still allowing easy removal. When stacked side-by-side, there is additional room below to store small items transversely. To keep them from moving around, I taped each row together.

I printed these with cheap PLA, but any plastic other than an elastomer would work. Printed at a 90-degree rotation with supports.

Several sizes and configurations of model are listed. Some of the models are a little clunky - I modeled them in Blender and I'm a noob.

Feel free to remix and improve!