Well, I'm pretty pleased for $40 including shipping.
Found a guy on ebay that makes all kinds of wild looking grips, plus a few more "traditional" ones like this. TruIvory by Bar-S grips used to be the best fake ivory, but they were quite pricey and are extinct. These do remind me of TruIvory but aren't quite as natural looking, as the grain is a little too "random", but still not bad.
He makes grips of this material for Rugers also, unfortunately not for Colts.