In reply to paul walters: Wore the arse out of mine. Have a couple of pairs of omnis, but they're plain - khaki pair and blue pair. Closest I can find now is Zimbalooba or Tinga Tingas but they don't come anywhere near.
Glad UKC can be relied upon for a reply to even the most unexpected posts !
I emailed Troll today to see if they had any plans to restart production of Jesters. I'll post any reply I get.