World: r3wp

Didn't turn it up here.

Some quines were posted to the mailing list

Maybe the ones in question were on earlier incarnations of this world

Nothing relevant in my copy of the original REBOL world, nor its 
short-lived sucessor REBOL2,

Nothing obvious on the Mailing list archive -- that goes back to 
mid-2000 which, I think, predates Reichart's involvement with REBOL.

Rechart's involvement with Rebol predates Rebol ! lol

Nice !

p: 0x0 img: make image! [200x200]

loop 100000 [poke img p red p: (pick [100x0 0x200 200x200] random 
3) + p / 2]
view layout [image img]

Very nice!