![](https://static.dezeen.com/uploads/2020/09/mater-mask-stool-villa-copenhagen-3-days-of-design_dezeen_2364_col_sq-411x411.jpg)
Mater designs stools made with leftover grain from beer and plastic insulin pens
Dezeen Showroom:design brand Mater has launched Mask Stool, made using the spent grain from brewery Carlsberg's beer production, at Danish design festival 3 Days of Design. More