In the US they were called Lister (Lyster) bags. Find em on ebay.

Apropos of nothing: Can you picture what it would be like to start planning a classic safari, replete with a cruise to Dar es Salam? Six months gone, living in a tent, shower consists of a bucket with a nozzle, etc.

My first safari in 1995 was to a tent camp in Botswana up on the Okavango. Chef cooked on an open fire and steel plate. Shower was as above. Shower water smelled faintly of smoke from the cooking fire. We did have safari trucks, but I got my sitatunga out of a mokorro (dugout). I'll never forget it.