I suspect the person was thinking you were asking after Shapeoko wasteboards.
As @enl_public noted, the Nomad wasteboards are in the shop, and various files for making your own (say on a Shapeoko) are available: Nomad Waste Peg Board Compilation and https://www.thingiverse.com/thing:3101675 c.f., Nomad 883 threaded table and clamps