Grizz - I'm glad I asked since you got a new one, and indeed, it is readily available on Amazon. Thanks for the link.
Out of curiosity though, if I attached a funnel to the oil diffuser I already have, would it be a similar effect? I know it might not be as potent, but if it is the same technology, I will use my unit for now. Here is a link so you can check out the specs.