This configurable OpenSCAD file generates hexhex boards (a hexagon of hexagons) with various style and functional options. Each space has a hole to contain a marble; I've sized the sample STL files for 16mm marbles that were cheap at a local dollar store.

The main options are:

• size in hexes
• size and spacing of holes
• optional hex grid lines (which can be adjusted to help use the board at varying sizes)
• optional guides for sliding marbles (which can be set to exit the board, similar to Abalone)

I don't recommend using the last two options at the same time.

There are hundreds of game that can be played on these boards with two to four colours of marbles. Some examples:

• Yavalath and other games with the same components (see also here)
• Blooms
• Bug
• NECNON
• Games with Boards of 61 Hexagons (5 per side)
• Games with Boards of 91 Hexagons (6 per side)
• Games with Boards of 127 Hexagons (7 per side)
• Games with Boards of 169, Hexagons (8 per side)
• Games with boards of 37 hexagons

Updated 22 May 2019 to allow 0-size holes (flat hexes) and support cutting the outer edge to make interlocking pieces. I've included an example Storisende module (sized to fit mini poker chips).