Other

VecM: DIY MIDI Interface for GCE / Milton Bradley Vectrex

http://little-scale.blogspot.com/2011/07/vecm-diy-midi-interface-for-gce-milton.html

Box inlays:
https://www.mortoffgames.com/index.php?route=product/product&product id=940

Vectrex cartridge shells:
http://www.vectrexmulti.com/order.html