I was thinkin if you can make a guest world of  the landscape floating in the sky. The landscape will be mountainous, people can dig and make buildings anywhere. The lobby can stay the same. And you should also host a skyship building contest for any rank. Everyone will be mixed into different ranks and they have to work together to make the best starship they can make. The judges should be higher rankings, whichever skyship they think is the best wins.

My username on minecraft is darkprince103, i've made made towers and castles, but i'm still a  guest and my stuff got griefed, so i'm just introducin myself.