I think the disco lights on the suitcase wheels is a brilliant idea
The company does not provide suitcases for the cockpit crew, unlike the cabin crew, so they have no say over what we use
I would do it just to get under their skin,
so next time you fly with the individual please get the address of the shop in SFO
Remember how upset they became some years back with crew using multi coloured backpacks as flight bags this would drive them nuts