Here is the full solution for CraftConnections Day 64. Each group is shown with its difficulty colour and a redundant shape, so it stays readable if you are colour blind.
Classic — Day 64
● Dyes Brown Dye · Green Dye · Lime Dye · Red Dye
▲ Blocks that hold your stuff Hopper · Barrel · Smoker · Blast Furnace
◆ You can eat these Pumpkin Pie · Beetroot · Bucket of Cod · Cooked Chicken
★ Crafted with string Crossbow · Loom · Fishing Rod · Candle
No-overlap — Day 64
● Shovels Netherite Shovel · Iron Shovel · Golden Shovel · Copper Shovel
▲ Saplings Pale Oak Sapling · Spruce Sapling · Oak Sapling · Jungle Sapling
◆ Crafted with iron Block of Iron · Stonecutter · Lodestone · Cauldron
★ Farmer villagers plant these Potato · Torchflower Seeds · Beetroot Seeds · Pitcher Pod