I ordered them online from Scibor Miniatures. Considering they were shipping from Poland, I wasn't expecting them to arrive for another week. I think think they are made from some sort of resin, which make them sturdier than plastic, but a trifle bit harder to trim. They required a little cleanup to remove the excess flash, but overall I was very impressed with them. They are just the right size for LOTR miniatures and the detail on them is great.
The rest of the weekend was spent on a terrain project. More details to come.