Cobblemon Bottlecaps

Mod adds Bottle Caps and Golden Bottle Caps. Both can be fished up as loot (1/100 chance when finding fishing treasure), but there are also two shapeless crafting recipes:

Normal Bottle Cap:

These can be combined with Apricons to make Bottle caps for each IV:

• HP: Red
• Attack: Black
• SpAtk: Blue
• Def: Yellow
• SpDef: Green
• Speed: Pink

Or, if you want to set all IVs to 31 in one go, you can craft a Gold Bottle Cap:

There's also a Creative-only Repel block that stops Pokemon from spawning in a 21-block radius.