Over on patreon.com a number of terrain tipsters have supplemented what they make building custom terrain by throwing out a virtual tip jar in the form of Patreon sponsorship. This allows folks who like to view their videos and benefits from their tutorials the chance to pay a little back to these fine creators. One of my personal favorites, as one can imagine from reading my Terrain Tuesday blog posts, is TerranScapes here.
One of the newer kids on the block is 3T-Studios here.
But one can go to the website and search by Terrain to find all manner of creators worthy of sponsorship here.