Here is one of the two bikes I ride at work. This one I use just to make the 1/4 mile trek from the gate to my work area and back at the end of the night. I built it completely from parts I salvaged from scrap bins around the plant. I used one of our big sand blast cabinets to remove the grimy yellow paint and left it to mother nature to do the rest. That was about a year ago and the patina is coming along nicely, especially considering it stays inside 24/7.