I also found this job lot, it is so obviously fake! http://cgi.ebay.co.uk/MAC-VENOMOUS-VILLAINS-MAKEUP-SET-BAG-LIMITED-EDITION-/230618371364?pt=UK_Health_Beauty_Make_Up_Sets_LE&hash=item35b1ed1524
These look fake too, MAC doesn't put applicators in their eyeshadows http://cgi.ebay.co.uk/Mac-Make-Up-/330562191670?pt=UK_Health_Beauty_Make_up_Cosmetics_Eye_Shadow_PP&hash=item4cf70ac136
And this, http://cgi.ebay.co.uk/MAC-Lipstick-/290561818818?pt=UK_Health_Beauty_Make_Up_Cosmetics_Lipstick_PP&hash=item43a6d580c2
I for one would never buy anything claiming to be MAC on ebay, I can't pick out the good fakes so will only buy from MAC/Selfridges/Debenhams.