Pimoroni pibow raspberry pi model b pi 2 cases pimoroni pibow rainbow model b the new pimoroni pibow rainbow case for the raspberry pi model b and pi 2 b has been redesigned with add on boards in mind a new feature is an extra extension layer to allow add on boards like the ciseco pi lite to fit inside the icons and cut outs have also been moved to keep the lid clear improving the look this is a sleek durable and attractive case laser cut from colourful high quality cast acrylic in