Canon EOS lens theft protector

It is easy to remove a lens on a Canon EOS camera. Too easy in fact - as I found it whilst queuing in a MacDonald's in St.Petersburg. I sat down to eat a burger and realised I had no lens... Apparently lens theft like this is quite common in Russia!

This covers the lens release button - making it hard to change the lens - using a screwdriver will work, but it is not going to come off by some Russian slight of hand.

This was made for the 24-70 and other lenses look like they need a slightly