I am currently looking into having certain items made with the 10 Tenths moniker on them - T-Shirts and bumper stickers are on the list. These will be for sale through the site if the deal comes off.
However, I fail to see how I can stop you promoting the site on your travels by making your own!
As long as you include the URL of the site, i'd be delighted if you wanted to use our logo. (as long as you send me one too
)