Most of the fusions you do do not make any sense, you must first have to think "What are the two items." then you can fuse them together if they make sense.. But I mean, a boat/roof thing for a bridge? That just doesn't even make any sense. I am thinking about making a tutorial about this, and just some simple things of mapping, if you would like me to, please like this message so I know I'm actually helping someone. xD