もみもみ - Momi momi

This is currently my favourite commercial (featuring the bad boy of Sumo - Yokozuna Asashōryū Akinori), granted it isn't on TV here and you can't actually buy the product. Well, maybe you can, but I doubt it'd be easy to find.
There is also an instructional video on how to do the もみもみ dance, which is also quite funny. The lady instructor has quite the husky voice.