
Grounded 2 is full of odd crafting materials, such as household items, or even seeds that you can repurpose into handy gear. One of the most important is blueberry leather, since it's used in vital upgrades like the Omni-Axe and lots of tier two armour, including the Ladybug and Northern sets that you'll likely want to get as you progress into later regions (and face deadlier bugs).
I spent way too much time trying to track down blueberry chunks, delaying much-needed upgrades to progress, so below I'll go over where you can find lots of them—and quickly.