Milk Paint: For the Well-Loved Look (good for Hobbit farmers and tall-folk alike)
Milk paint was traditionally made from… you guessed it! Milk! It’s fairly easy to mix up yourself, and you can add any colours that you want. You might want to stick to powdered tempera or even those cheesy, cheap clothing dyes.
It will bond to most porous surfaces, or you can also put down a really sticky primer (like the kind which will stick to oil paint). It’s also really great for that unfinished pine ‘craft store’ stuff, like boxes and coat racks, as well as the traditional barn and wooden fence.