10 Euros Poudlard

Issued under France's long-running "Objets d'Art" collector program, this piece is legal tender despite being tied to a licensed fictional property — an arrangement that required formal agreement between the Monnaie de Paris and Warner Bros. France has issued collector euros under similar IP licenses since the early 2000s, but the Harry Potter series drew particular attention for being among the highest-selling themed releases in the program's history. The .333 fineness places it at the lower end of silver coinage, closer to historic billon than to modern collector silver.