My 1:43 F1 displayS

Last spring I started collecting 1:43 models. The detail to cost ratio and the number I can purchase was most appealing. Plus, in 1:43 there are hundreds of F1 cars from every decade so its a fun way to get a mix of the great vehicles from the hey day of the sport. The issue was how to start displaying them. The little boxes are a bit boring and hard to see thru and I don't have enough to adequately fill a nice display case so I found a way to mount them to my wall. They currently mount to the board then the board gets hung on the wall like a picture frame. I need more ideas to start displaying the others. Does anyone have any innovative ideas to further mount the rest?