Long ago, in the days of the first new MINI, there was a toggle switch re-labelling kit produced by MINI USA and collected by a few lucky MINI owners (it was sometimes found in the Welcome Kit shipped to some owners).
Then in 2006, MINI Pirate produced a new set of toggle switch labels and now, Aesthetic Creations has produced a set:
These are nice quality peel-off stickers, and with their nod to The HitchHikers Guide To The Galaxy, I had to have a couple of sets for my collection 😉
M&I / GBMINI 
Hum, I got some sort of toggle switch thingy that was one piece of a plastic-ish type stuff that you slid over the switches. Forget where it was from though.
I think you’re referring to a “prize” during the “Awesomeness Of Small” campaign
I always loved those stickers, but always wished they made them so the logos let the orange light through so you could see at night. That’s why my mini instead wears the above mentioned plastic label. (Which were recently mentioned during inspection when they couldn’t figure out how to lower the windows!)
Quite Cool.