It's still not clear to me why in the 21st century someone couldn't have invented something better. I mean the essential problem is simply catching a fluid coming rapidly out of a tube. The need for the rest of the wrapping is simply to hold the catchment over the top of the tube, but the wrapping interferes with the pleasure. Engineering would suggest that a plug would be more effective: the problem is securing it.

Over to you, engineering profession.

yours,

Peter T.