A napkin/serviette holder with a hexagonal pattern, with a few assembly options:

1. A dovetail assembly (two sides plus a base). No hardware required, except maybe glue depending on tolerances.
2. A screw-together assembly. Requires 6x M3x10mm (or up to 24mm) hex screws and 6x M3xD4xL4.5mm heatset inserts.
3. A one piece assembly. I don't recommend this one because it requires a lot of bridging and overhangs which won't print as cleanly as the other two options and the model won't be as strong due to the print orientation. But there's no assembly required and it fits on one plate, so feel free to try it.