While collecting, you can find Metal and Bronze to craft different items. With 30 bronze, you can craft an engine, which is required to craft anything.
Items that can be crafted:
Extendable Claws
Extendable Claws are things you put in your claws to make them longer and sharper. They let you have 1.5 times more attacking power for the duration they last (1 moon)
Items needed:
Engine
30 Iron

Garden Robot
A Garden Robot will manage your growing herbs until all of them are done growing. This makes them grow 2 times faster, but once the herbs are done growing the robot falls apart
Items Needed:
Engine
50 Iron

Hunting Robot:
A hunting robot will hunt every day. It will last for 3 moons and can hunt as well as a regular bottle warrior at MAX level in everything. It will hunt 4 times a day until it falls apart
Items:
Engine
50 Iron

Foraging Robot
A foraging robot will hunt every day. It will last for 3 moons and can forage as well as a regular Nature Mage at MAX level in everything. It will forage 4 times a day until it falls apart
Items:
Engine
50 Iron

Collecting Robot
A collecting robot will collect every day. It will last for 3 moons. It will collect 4 times a day until it falls apart
Items:
Engine
50 Iron

Canon
A canon that blows powerful bombs at a target. Deals 100 damage if it hits anyone regardless of defense
Items
Engine
100 iron

This is all I have made- if you want a particular item to be added just comment- I will consider it