#Uncraftable Items This list generated against spigot 1.9.4 Material lists, which also cantains a lot of internal items / blocks which may be obtainable by crafting, like the BED_BLOCK which can be placed using a BED_ITEM...
EDIT: I quickly looked over the list and removed the most obvious ones, just comment if you find any more of these blocks 😄
- AIR
- GRASS
- COBBLESTONE
- SAPLING
- BEDROCK
- SAND