This is my collection of trays that are designed to work with the Wyrmwood Modular Gaming Table.
If you'd like to add some magnets, I've had success *using these 12mm x 3mm magnets. These magnets aren't as strong as the standard Wyrmwood magnets, but they've worked for my use-case.
* This link contains an affiliate link for me. This costs you nothing and helps support me.
The author marked this model as their own original creation.