You may be able to find any kind of accessory or line border that are used during the assembling process of ceiling – wall and door panels.
F2067 - 20 cm Oak Panel with Wooden Pattern with joint
Detailed photoF2068 - 20 cm Walnut Panel with Wooden Pattern with joint
Detailed photoF2071 - 20 cm Panel with Blue Wooden Pattern with joint
Detailed photoF2072 - 20 cm Panel with Yellow Wooden Pattern with joint
Detailed photo