I've had the same idea......I like the larger swords that one of the weapons pack and some of the figures come with, they look like they could work well with a Conan or Red Sonja figure. But they aren't cheap! But like you, I don't know size comparison. I have also used Spawn weapons to much success (my custom Barbarian uses a Spawn broadaxe and it looks great!) so it would be nice to see someone using these.