Widziałem gdzieś proso tak formowane
https://www.google.pl/url?sa=t&source=web&rct=j&url=/imgres%3Fimgurl%3Dhttp://www.gorg.pl/foto_net/ca_cts/kolnierz.jpg%26imgrefurl%3Dhttp://forum.toyotaklub.org.pl/index.php%3Ftopic%3D20151.0%26h%3D784%26w%3D800%26tbnid%3D6UFJnEyJ6j8HaM%26tbnh%3D222%26tbnw%3D227%26usg%3D__lJz3usmScUBfKiIRfUs27Sqk4Jw%3D%26docid%3DDIMc38vcX-yFbM&ved=0ahUKEwiP7NW4pJ_bAhWDbVAKHWkeBaAQ8g0IKjAA&usg=AOvVaw26-N6XeWKg9h9vdse-vTKk