Plamobil rod holder for transport on train/truck

My son wanted more types of cargo to play with on his Playmobil train and trucks. So I made this little holder after something I saw on a train show. It holds 20 wooden dowels that I have painted. Max size that will fit is 9mm and then you might still need to sand. 

The points at the bottom make sure the cargo fits the slots on the cargo train and won't move around.