Actually not true. He wanted to make his 6th horcrux (which would make 7 total pieces of his soul including the part still inside him) with Harry's death. He didn't get to that night (as far as he knew), and ended up using Nagini to make his last horcrux several years later, after possessing her while in the Albanian forest.
If you read the books, you would know Voldemort has a pride that doesn't allow him to just use ordinary objects, he uses objects that have a meaning to him, or are a part of his collection
He seemed like a bit of a free-baller.