F1 Car Parts Sold as Key-Chains
As far as we know, there is an online shop that sells small used F1 car parts from different manufacturers.
For example, the one in the picture above is a rear wing insert, made from CNC machined aluminum and it is from a 2006 Honda racecar. It is approximately 65 mm (2.5 inch) in length and it is engraved with a Honda part number to state that it is genuine.
Each piece comes with a laminated gift / information card that explains what the part is, where it comes from and which drivers would have used it. The stock is limited and you can get one here.