What Items Have Odd Stack Sizes?

I'm a modder, and I like solving problems that I encounter. One of those problems is stackable items. There are some items that are stackable in-game that aren't stackable in vanilla, so Minecraft doesn't let them stack client-side until the server corrects it, along with some items that are unstackable despite having similar enough NBT data that Minecraft tries to stack them together. There are also items with stacking sizes smaller than 64 that Minecraft thinks should stack to 64.

I've solved the first problems with a mod that makes everything in the game stack to 64 and enforces stricter NBT comparison on stacking, but that doesn't fix the problem with the items that have odd stacking sizes, like the Avo "Speed Surge" pearls that stack to 16.

If you know an item that doesn't stack to 64, could you please put it in the replies below so I can add it to the exceptions list for the mod?

Current list:

• Speed Surge

 

Eldritch Outlook Eyes (idk the name off the top of my head)

 

16 is even

 

the eye’s pupil

 

maybe snowball items that are ingredients?

 

the main things that don't stack that should are eye's pupils... they take up so much space in my bank

 

bit of a meme but a z r u n e s