Variations: Alternatives To Paper (Substrates) From Iom, Costa Rica, Haiti, Others?

In 1979, the ABNC issued the 50 Gourdes (P-235A) with the C, D, E & F prefixes using Tivek R substrate:
http://www.banknote.ws/COLLECTION/c.../CRI0252.htm

In 1983 Bradbury & Wilkinson used Tyvek substrate hybrid on the One Pound with prefixes.

Isle of Man issued this P-38 One Pound:


-which I posted in March.

In the same year Costa Rica issued P-252 made from Tyvek R with the Z prefix:
http://www.banknote.ws/COLLECTION/c.../CRI0252.htm

If you know of other nations that experimented with a denomination issued using alternate (hybrid) substrate* then please contribute here:
(* note I'm not looking for small unknown test runs like the BoC GOG $5 which only had a run of 100,000 & was essentially produced/included within a normal 10M prefix run & discovered decades later).