DIY - the Céline shirt
You need two shirts. One white and one jeans shirt. Take care that the sleeves have the same width - if not they don't fit together. Cut the sleeves from both shirts at the elbow. If the ends frassle turn them down and fix 'em with fusible web (or interfacing, or Vlieseline). Put the jeans shirt sleeves over the white shirt sleeves and iron them on with fusible web on the ends. Or take it to the tailor - they sew something like that for peanuts.
I'll show you my result in a few days.
Jeans Shirt - here from H&M
White Shirt - here from Zara
Vlieseline - here from a handicraft store
OR buy the alternative at Asos.com
(source: Céline / photo editing - 123456789smiling)