Use this simple video to show you how to hide secret messages into your oceans, lakes, and more using the new minecraft 1.9 frost walker boots and a simple command. Here is the minecraft command needed. Read the sentence under the command as well:. /summon ArmorStand ~ ~# ~ {Invisible:1,Invulnerable:1,NoGravity:1}. change the "#" above to whatever height you need. Using "1" or no number at all will place one where you're standing. Facebook.