What an incredible co-incidence! At roughly the same time, someone else known as Seaman0406 asked the very same question on another site. I'd wager the chances of this happening as being less than a million to one.
Alternatively, this is rather subtle attempt at advertising - in which case likemindly individuals may wish to consider reporting this question, as I have done.
You must think we are idiots to fall for that one.
PS Phelps has sponsorship, so doesn't actually need to buy his own cossies.