http://www.thinkwell.com/javascripts/curvycorners.src.js
http://www.clickpentrufemei.ro/addons/themes/click/js/libs/curvycorners.js
http://www.landcom.ru/bitrix/templates/Landcom/js/curvycorners.src.js
http://iconics.com/IconicsWebsite/scripts/curvycorners.src.js