These bases are meant for holding Craig Lyn Design Studio Bean Vaults. This thing includes a 2x6, a 1x6 and a 2x6 ranked holder as well as a funnel for filling the bean vaults.
Printing:
Most any filament should work for this.
2 perimeters minimum, 5 top/bottom layers and 20% infill are a good place to start.
This model can also be milled on a desktop CNC.