Spawns randomly, brings the player to the Minecraft Store

Locked Chest

Potion of Sharing

Used to create custom dimensions called "Mines"

The Mine Crafter

Created by throwing a written book into a Nether Portal, transported the player to a randomly generated dimension

Funky Portal

A spoof on the real texture update, made every texture super grimy by reducing the number of color channels

8-bit color

Tasty!

On April 1st, 2014, all player skins were replaced with villagers

Villager skin

A fake item that was displayed in the Minecraft Store

Enlagement Pills

Layed Diamonds or Lapis Lazuli, and randomly exploded

Diamond Chicken

The player could ride the Ender Dragon by punching it

The Ender Dragon could be ridden

Generated in the Ant dimension, moved following the Langton's Ant algorithm

Sometimes spawned in place of Cows. Real Horses were added in the following update.

Horses

Used to set the skybox in the current dimension

Sky Box

USB Charger

Stained Glass would be added in the next update

Tinted Glass

When a block was thrown on a player's head they would wear it, with a custom model for barrels

Barrels were wearable

Mob Trophy

A boss fought in some Mines. Happy Ghasts would be added in the next update.

Angry Ghast

Frying Table

Reached by travelling to Y=700. Spawned Moon Cows. The shape of the Earth could be changed by vote.

The Moon

When B was pressed, it brought up a fake image of an office program

Boss Mode

Found in the Missing and Skygrid dimensions

Swaggiest Stairs Ever

Spawned randomly, and sometimes exploded when opened

Flaming Barrels

Dropped Toxic Resin. Resin would be added in a later update.

Resin Ore

Found in an item frame in the Isolation dimension

A very fine item

Dropped an anvil on mob's heads when exploded

Etho Slab

What signs looked like while wearing Reality Vision Goggles

OBEY

Obsidian Boat

Super Hostile Mode

Unlocked by voting for the "Trails & Tails Update"

Tails

Unlocked by collecting the maximum number of hearts

Minescreeper

Ray Tracing

Guess which Minecraft April Fools update a feature was released in! Only includes changes to the actual game, not announcements or external content.