Back OT...
If the taps are all about the same you could just have a solid bar that can lock down in front of them. Maybe like a gate that swings down and locks in place?
This is a good idea. You would want to redesign the tap handles with holes so you could put a small peg attached to the locking bat through it so the handle couldnt be twisted off and then just the faucet used (gnef has the little black plastic handles and forward seals, so removing the handle and just using the tap without a handle would be easy.)