The modules meant for the youth layout of the MSCD are made with a laser. This process is more expensive, but makes it easier to create the complex shapes necessary for the special tables made for exhibitions.
Several companies already sell professionally build T-TRAK modules on the internet. Hopefully this will happen for C-TRAK modules as well. The 100 modules for the record attempt in Zutphen on December 17th 2017 are built by a carpenter.