http://www.homebase.co.uk/webapp/wcs/stores/servlet/Browse?storeId=20001&langId=-1&c_3=3%7Ccat_14327524%7CLamp+shades%7C23432454&c_2=2%7Ccat_16849318%7CLamp+bases+and+Lamp+shades%7C14327524&c_1=1%7Ccategory_root%7CLighting%7C16849318&pp=20&s=Price: Low - High&p=141

I have just been through a 160 catalogue of HOMEBASE lampshades and neither of the SHELL ones are there...how odd...because neither are in the sale...and there is a sale on at CLACTON HOMEBASE...