I've got one natural fluke. but you can also get the same deal I got from Ebay some outfit called GearTree has natural ones for 169 delivered.
I can send you mine for 160 delivered if you want. Its brand new. I just got it on impulse and have once again too many ukes around this place. It still has the original hang tag and I have played it and been tuning it for about a week. But I also have my Makalas and Martin, Hamano, Ohana etc. so it was a frivolous buy. It has the Nylguts on it and is nice. Let me know.