Here’s an interesting concept. Save on construction costs and help the environment by growing your house out of tree trunks, tree roots and other natural elements.
It would be much slower than watching paint dry (think years, or even generations), but besides the construction savings, you’ll be saving on heating/cooling bills, be closer to nature and live in something that outlasts concrete.
Might be a good long-term investment. Start growing houses now and sell them for a fortune 20 years down the road.