Umbilical Cord Source?

Hello,

I have a few air-cooled argon lasers I play with, but I need to jump some pins for them to lose.

I was thinking of building a remote interface by reverse engineering the pinouts, and I’ve got a shopping cart full of wire, TE AMP CPC connectors, MultiMate sockets,

BUT,, I have no idea where to get the umbilical cords that usually harness the whole shebang.

I don’t even know what to google, it all leads to neonatal care and scuba diving applications.

Does anyone know a source for the umbilical sheathing used for these connectors?