Here are my tanks still in the making. The one on the bike is a HoughMade Cycle Works take off. Wooden hiding that ugly peanut chinese tank. The second on the bench is wooden and fiberglass & epoxy. Shaped to go in between bicycle bars. It will be sealed with Kreen Tank Sealer. Inside is already 2 layers of epoxy. The fillers are ABC auto-valve from my local hardware store. Theey wwill have a sort of hood design when done. All is still in the makings.