Check out the automotive industry as they have an excellent array of silicone / alloy pipes that can be made to work.
This is an aluminium air induction pipe for a performance car and at around £15 delivered, not that expensive, in the global scene of things.
The pipe gives a nice sweeping angle and pretty much eleminates any condensation getting back into the boil. In my previous config, I had the silicone flexible hose connected directly to the dome lid but this resulted in a very tight angle on the pipe and i suspects some condensation being allowed back into the boil.
Only used this config once buy have to say, I was really impressed with it. Nice flow of steam out of the end of the pipe and little or no pooling of condensation.
