You can use Thran Turbine, although this would mean that you have to use the ability during your upkeep. It's a pretty cool card although a bit niche in its applications.
In the same vein as The Golgari Guy, Braid of Fire could be useful.
Ooh, thanks, I like these ideas. I don't mind sacrificing during upkeep with the right cards and in the right situation, and with
Braid of Fire I could potentially get multiple sacrifices in the right situation.
-edit-
Combined with
Horizon Stone, both of these could be fun, it is all colorless at that point, but that shouldn't matter.