Ya know, the idea of rooting around for corpse bits to revere just isn't sitting well with me for some strange reason. The idea that uncounted thousands upon thousands of people have been genuflecting not dem bones of a Saint but to Larry the guy who was buried conveniently nearby ..... priceless. What you need there is a bone-a-fide legbone, har har har
If you want provenance and something waaaay cooler to revere I submit the wooden hand of Jean Danjou Jean Danjou - Wikipedia
The history of false reliquaries has been going on probably since the time of Jesus. This has been big business and the Catholic Church has been promoting this from the get go.