Bonnet Bump Stops

[jimed]

Just been doing the polish ready for Chatsworth and have been reminded that of the 4 small half round rubber bump stops at the top of the engine bay (where the bonnet closes to) 2 are missing. I've tried to get some at various car shows and also tried TVR Car Parts and local trimmers but to no avail. Does anyone know where I could get a couple from? Not a big issue but it would be nice to get the right ones if I could.
Jim