Where can I buy a navy blue and pink striped duvet cover?

preferably wide-ish stripes.. say around 10cm/ 4"?

Ok. I’ll give it a shot. It would have been much easier if you would have told us what size duvet cover you need…

http://images.google.ca/imgres?imgurl=http://images.builderssquare.com/Detail/0/1/26/1026319_Detail.jpg&imgrefurl=http://www.builderssquare.com/xp_1026319-Nautica_Langley_Stripe_Duvet_Cover_Color_multi_Size_Twin_49003.aspx&usg=__y9Vor2KKsNs3uK1XNLOtoTp-NDc=&h=225&w=225&sz=15&hl=fr&start=4&tbnid=TdcF797q-BtvyM:&tbnh=108&tbnw=108&prev=/images%3Fq%3Dblue%2Band%2Bpink%2Bstripe%2Bduvet%2Bcover%26gbv%3D2%26hl%3Dfr

http://images.google.ca/imgres?imgurl=http://s7v1.scene7.com/is/image/JohnLewis/000008637%3F%24product%24&imgrefurl=https://www.johnlewis.com/8637/Product.aspx&usg=__2okW_lV_uZCPnFugHlQmxUpe7qg=&h=298&w=298&sz=11&hl=fr&start=21&tbnid=vOvBokrbvqKIMM:&tbnh=116&tbnw=116&prev=/images%3Fq%3Dblue%2Band%2Bpink%2Bstripe%2Bduvet%2Bcover%26gbv%3D2%26hl%3Dfr

If you can’t find it, consider using a pink or blue and white stipe duvet cover and using the opposite color and white striped sheets:

http://www.pbteen.com/products/p3198/index.cfm