One of the questions we get with our Xterra is the nice domain name sticker on the back.
We got it from www.vinyl-decals.com for a great deal. They sell Domain Name Decals to put on your vehicle or anywhere you’d like. You get 2 decals for the price of 1 with free shipping — just $10. They even included 2 smaller stickers, which we put on the side windows — so they cars that we pass can also see our domain name. 
