CARiD has a Duraflex bumper kit that removes the (:D) smile. Sells for a little over $300 shipped.
http://www.carid.com/2012-mazda-2-body-kits/duraflex-custom-bumpers-45706658.html
Some of these might ship to the U.K. Check them out at:
http://www.ebay.com/sch/i.html?_odkw=photochromatic+sunglasses&_from=R40&_osacat=0&_from=R40&_trksid=p2045573.m570.l1313.TR0.TRC0.H0.X.TRS5&_nkw=Mazda2+Center+Console&_sacat=0