Moar Helmets
For Minecraft 1.16 to 1.21.3

• Helm of the Deep:
  This helmet gives you permanent conduits power while worn. This allows you to stay underwater forever and gives water vision. However, it is a very expensive item to craft.
  
• Mining Helmet:
  The Mining Helmet gives you night vision when worn. This makes caving nice and easy. It is quite expensive however.
  
  
• Helm of Knowledge:
  While worn nearby mobs glow. This allows them to be easily seen, even through blocks.
  
  
• Librarian Hat:
  The Librarian Hat gives you 5 XP points (not levels) per minute when worn. This does not heal mending items, but the XP can be used for enchanting or anvils. While it isn’t a ton of XP, it does add up over time.
  
  
• Helmet of Tranquility:
  This item is a rather troll one. It gives the wearer 5 seconds of levitation while worn, so even when taken off they will continue to levitate for a bit. This can be used to troll people into floating up into the sky.
  
  
• Lucky Hat:
  A shiny bling bling hat. It gives the wearer luck II, which makes loot from chests and fishing better.
  
  
• Farming Hat:
  The farming hat increases the growth speed of nearby crops fairly substantially. It only works on crops that grow on farmland currently.
  
  
• Attractive Hat:
  Makes you glow.
  
  
• Curing Helmet:
  Removes potion effects from you.
  
  
• Magnetic Helmet:
  Pulls items to you.

Patron Exclusive Helmets ($1+)

• Pickaxe Helmet:
  While below blocks, jumping mines the blocks.
  
  
• Ramming Helmet:
  Sprint while looking down to damage and knockback mobs in front of you.
  
  
• Potato Helmet:
  Slowly restores your hunger when it isn’t full.
  
  
• Crossbow Helmet:
  Press Sneak to shoot an arrow. Reloads in 3 seconds.