I just had an idea of what another horcrux could possibly be.... Dumbledore said that Voldemort would have wanted to try to get something of Gryffindor's as well as the other founders, right? Well, there was something besides the sword that had belonged to Godric Gryfindor.... The Sorting Hat! It was Godric Gryffindor's before it became the Sorting Hat, right? I know it's far fetched, and people will probably laugh, but, it's still a small possiblility.....