Zandit - Adam (owner of the site) has no problems with whatever you want to use to finish a guitar (and in the deep dark pits of youtube, you may find some dodgy videos of Adam doing a spray job on a kit to prove it) - Pitbull sells Dingotone which was created as a guitar stain / finish. Follow the site and there will be some comment on what DB likes and doesn't like - the beauty of this site is that it caters for people from the beginning end of a guitarbuilding experience through to old hands like DB - who makes money from selling premium scratch built guitars and has to stand by his product for years to come. Many, many guitar enthusiasts have used household stains and the like, including stamp pad ink, etc. to mixed success - but really it's your guitar and whatever you want to finish it with is cool by us.