Imagine spending 10000 energy on a stick 👀
Glad you enjoyed the game! And thanks for the bug report, I'll look into it!
The sign probably should've been my warning I guess. I thought it might have produced a special item and unlocked the last slot for the recycler...
EDIT: The yellow/gold colored versions of objects do indeed produce more resources. I didn't pay enough attention to that in my first playthrough. They are bonuses not bugs. Hey, what do you expect from someone who would pay 10,000 energy for a stick? :D