With this buckle...you'll have to accessorize it with your own belt! And at about $18.00 just by itself, that's rather far to go. The buckle is all metal, with a black paint coating. The front has indented areas for each of the colors, which are all solid enamel fills. This makes the buckle both glossy and durable. The back has a little peg for the belt-hole. This is being sold at retail Hot Topic stores (and in their online store) in summer 2010, it may also be available elsewhere at online retail...for about the same price. The right photo shows how you'll likely find it, with the paper tag attached.
Now, there are 2 Sonic enamel metal belt buckles. The larger one is quite common, seen at Hot Topics and all over online. However, the 2nd, smaller one is less common though it is from Bio World. It MAY be found at some Spencers gifts, and possibly online as well. It is less 'Sonic X' style, but still uses the paper hang tag.