I made a couple of laser bed nail boards for my Creality Falcon Module on my Ender 3 V2.

I originally made this model for a nail board, that used the bamboo cutting board from Dollar Tree.

I started by making a template in Fusion 360 and exporting a DXF file for LightBurn. (The export is completely doable with a personal license - with just a few extra steps)

And glued some magnets on the bottom to keep them from moving around.

I used:

2 ea. Dollar Tree Bamboo board

1 ea. Dollar Tree 9 x 13 Aluminum pan

3 ea. Home Depot #16 x 1-1/4in Wire Nails (1oz package)

LightBurn File Link