SET of 15 Wooden Parametric Lamp Shade Laser Cut File Laser - Etsy
Parametric lampshade: how to generate arches from a polygon? - Grasshopper - McNeel Forum
Lampshade design file freely available from the parametric design folder on the FullControl github (link in comments). Beware(!) this is not easy to print (large overhangs) and the design is not easy
Parametric Lamp por Alec P | Descargar modelo STL gratuito | Printables.com