You can put/hide chests inside mud blocks

You can put chests inside mudblocks like how you water log a chest (holding a chest while right clicking a mud block would place the chest inside the mudblock). Right clicking a mudlogged chest would open the chest. Would be a cool easter egg to have mud “seep” into the chest after a while (like a piece of mud would spawn inside the chest every few hundred ticks or so) To help in disguising the mudlogged chests, using bonemeal on a mudblock (normal or with a chest) gives it a top texture similar to grass.