This design is made using a method called cold casting. Hand sculpted to replace the factory 3M "Indian" font decal on horn covers. However-they can be mounted anywhere you want to dress things up a bit.  3M VHB double sided automotive mounting tape included.
 
Artabyss pieces are not scuplted metal, but rather made with a process called cold casting.
"Cold-Casting" is a term used to describe the process of mixing metal powder with a resin to create castings that give the appearance of solid metal. The metal cold-cast process (also known as "bonded metal") is faster and much easier to heat form compared with foundry casting of molten metal (lost wax process.) Unlike solid metal, this allows emblems to be heated up and molded to fit curved surfaces. Sculptures are then airbrushed as directed by the consumer. Metal "chrome/silver" paint, (which is actual pulverized chrome) may then be added, giving it a high shine, replicating  solid chrome. Because the surface is metal, the pieces are susceptible to patina or possibly rust. This is why all products are sealed with professional automotive topcoating.**