Anyhoo, I added them to the table while the children were playing with their animals and sure enough they became little animal houses.
There wasn't a lot of one-to-one correspondence going on and I attribute that to how tall the house walls are. I plan on disassembling them and cutting them down a bit to see if that helps. We tried to get these to stand upright but the material isn't stable enough. Perhaps if we back it with cardboard that would help. It will be interesting to see how the children use this material as I think it has a lot of potential.