From what I've found and put together from this site the entire commercial goes like this (and it sounds about right soo ya...)

WHHHHHHHHEEEEEEEEEEN you can't seem to find a baseball that's been signed
that's on Ebay
a new toy you can find,
a new suit OH SO FINE! that's on Ebay
Phones that ring,
organizer thing,
music jazz or swing,
nice bling bling,
that's on Ebay
Buy today and its on its way,
other users say,
u will feel ok,
thaaaaaaaaaats on Ebay!