I painted two unfinished wooden chairs for my kitchen. I used a wood spray paint, in a color called green apple. They look incredible, and the paint only cost $7. I'm not sure how much the chairs cost, as I got them a year ago, but I think they were $50 each.
I had matching chairs for the kitchen table, but got rid of them as they were too formal for the kitchen. Now I have a bunch of mismatched chairs that are much more interesting and funky.