My hunch is that the penisland.com link is faked...maybe not, but that's just my hunch from it's general sparsity and language throughout. Like look at this that was under the Customization heading:

No request is too boring or too off-the-wall. Don't be ashamed if all you want is a normal skinny white pen, they get the job done and they are infact our biggest seller! Conversely, there is no reason to be shy about your Pen Island needs. We've done it all. Wrapped in leather, little pink bows, we've even done pens dipped in chocolate!

Seems to me they're trying to milk any humor out of it they can.