As an active supporter you can use the '/heads' command which will open up the heads shop. This is where you can buy a variety of decorational heads from the following categories:
You can place them on the ground as decoration.
You can also place them on your head!
You can freely give the heads that you create to other players if you choose to, however you are not allowed to sell them to other players, this creates a pay to win aspect to heads and is not allowed on the server.