Y'know that fertilizer glitch? Yeah, when I say this, the first thing that pops up in your mind where @CyanTheMarker has a Silver Bone Blossom and Elephant Ears Seed from this glitch. Well.... what if I told you that this can actually work on Seed Shop and permanent seeds?
(yes that includes summer seeds like avocado)
This would be a sufficient add-on to the game.
How it works:
Apply a fertilizer to a Seed Shop or permanent crop. (it can be Silver, Gold, or Rainbow, whichever you have.)
After one of the fertilizers is applied, reclaim this crop that has said applied fertilizer.
Guaranteed chance for Gold, silver, or rainbow seed!
Let me know if you want this added!