This is my track. My friend's father owns an insulation business, so we got a 8' by 4' blueboard and a lot of smaller pink ones. We outlined the track with the pink ones and used drinking straws, masking tape, and needles to create the walls.
I hope to add a downhill from my wetbar to the track sometime soon, if I get that done, I'll post pics.
I hope you like it,
Yaksha