But this is the best part. I bought about four boxes of dollar store cars because Josh loves and know each of the ones found in our houses. Plus I kind of liked how they were lighter weight. I used both hot glue and E-6000 to glue them on. I figured the hot glue would hold them in place until the E-6000 dried. I used some nuts and bolts to fill in the gaps. Then I sprayed the whole thing with primer. Then with several coats of red spray paint. It really is one of my very favorite things in his room.