You can, * build one out of balsa wood or thermoplastics (available at hobby stores) * ask a friend with a 3d printer * visit a makerspace that might have one

You can, * build one out of balsa wood or thermoplastics (available at hobby stores) * ask a friend with a 3d printer * visit a makerspace that might have one * have a commercial 3d-printer shop print one for you Probably more options available if you spend some time rubbing your temples.