I bought a pair of 12" X 12" X 3/8" thickness ABS Plastic Sheets. I removed one of the Tie Downs and traced the template on a piece of White Copy Paper and then used that to make the template out of cardboard. I then took the template and the ABS Plastic and template to a local kid I found on FB and he cut them out for me by hand. Once they were made, I added 3M two sided automotive tape and attached them with 3M tape. The whole process took one day once I received the ABS. You can google ABS Plastic Sheet on-line, lots of places sell it. You can cut out the templates using a table saw which I don't have, hence I found someone to do it for me for $20.