I still have these pegs, which I must have bought almost 10 years ago. They have outlived all the other pegs in our household! I believe the materials used (very sturdy plastic), plus the design - a very simple one-piece mould that doesn't have any springs etc. - is why they are so robust.
However, I can't find them anywhere - does anyone know what happened to them / why they disappeared?
https://www.ebay.com.au/itm/182159556749
Images in case the above listing expires:
https://imgur.com/a/AygCZQ0
I only buy metal pegs because plastic ones get left out and turn white and then shatter. But with the metal ones I'm scared of them rusting so I bring them in with me.