Dremel Case Insert

I recently acquired a new Dremel 8250 in the Platinum Edition, which comes with a carrying case.
The case is two-part; the top section holds the Dremel, battery, and charger, while the bottom section is for accessories.

Where the Dremel is stored, there is a triangular recess that can be used for small parts.

To prevent these small parts from rattling around in the box, I have created an insert or box that can be placed there. This insert also has a lid.