Been trying to figure out a simple filtered hopper data pack that will open a chest UI when you crouch right click a hopper with a stick and what ever items you put inside the chest UI are the filtered items that the hopper can accept, need something simple that wont break the game or be too fancy, all the ones i see online are just way too much to them or simply dont work. would be great to see this in game!

Not sure how applicabel some of these catagories are (just brainstorming lists of attributes for a generic idea generator)

block, item, mob, weapon, tool,

color, model, texture,

speed, damage, reach, durability,

Sumerian, Chinese, Indian, Russisn, Greek, Ottoman, Roman, Norse, Teutonic, Celtic, Merovingian, Incam, Aztec, Hiberian, Iberian, Gaulish etc
(Hyborian, Melnibonean, Elvish, Dwarvish, Hobbit-esque, Pellicedan, etc)

Spring, Winter, Summer, Fall, Plalnting, Harvest

Fire Earth Air Water Spirit (Metal Wood)

Babylonian Zodiac{expand}
Chinese Zodiac {expand}


Sci-fi, Fantasy, modern, futuristic, historical (needs sub-list)

Urban, agrarian, wilderness (sublist)

Here are a couple of normal idea in a column

Boomerang
Fidget Spinner
add the crab
jetpack
ebay or amazon
cars

Complex ideas:
hats (with buffs)
advanced cooking
Uno (yes the card game)
generators (like the cobblestone generator but for more things)
Gym (get permanent buffs after working out)
Cookie clicker (idk)
potion effect mobs (like the stray, husk, bog(now) just more mobs that when they hit you give you a potion effect)

These were off the top off my head. hope these help :D