Handmade wood stain

Cheap handmade wood stain: Im making some shutters for the bathroom and im staining them with water and cheap kids brand brown & black paint. I just put a good plop of the paint in a tub and add water. Once ive put on a few coats I coat in a nice yellowy golden yacht varnish which brings all the colours out. I have only done 1 coat on the pic..ive still to add a few more coats and the yacht varnish.