Love this! Its going to make a great gift for my dad. I'll add more photos once the track is complete. Planning to have this run around the perimeter of his living room. My vision was for some of the carts to showcase his smaller lego pieces. Or swap out decor during the different holidays. I modified a gridfinity 9V 1x2 storage to hold 2 batteries & a fancy toggle switch. -- Everything was bought on amazon. The finished product will consist of approximately 75 double straight tracks, a couple of 45's, and 4 double 90's and a station. -- I might be crazy, but this has been a fun project so far!