Here's King Bob-omb! It's a pretty easy model (like the last others I sent) and you can choose between round body (see picture), the more octogonal one (like the hands in the picture), the spherical arms or the tube ones. Enjoy!
''Big Bob-omb, sometimes called King Bob-omb, because of his crown, is the king of the Bob-ombs. He's the first boss who is fought in Super Mario 64 and Super Mario 64 DS. Guarding the Power Star, which Bowser entrusted him with, he will not give it up without a fight.'' -Super Mario Wiki
Difficulty level: 3/10
Building tips: Use a glue gun for gluing the arms to the hands & the body if you don't place it like in the picture, but don't forget to ask a parent the right to use one or ask him to use it for you!