At farms there are animals , so why we can;t add some animal sheet ( this will be like a spawnable item only in farms ) . If u have a shovel and a burlap sack you could use it as a better fertilizer ( faster growing ) or the items growed with it can make u more energiezed .
Or if you want u can make an option to find a earthworm or maybe more than 1

Than you could add a chisel which can be used on wood logs to craft a bowl where u could add red berryes and water to make some colors which could be used for stealth system.
few color ideeas :
Red berryes + water => red colour
Blue berryes + water => blue
grass + water => green
animal sheet + water => black