Not sure if anyone has found this yet, but I was able to use

I duplicated my bow by accident while doing the material dupe

Accidental bow dupe glitch?

Officially The Easiest/Fastest Dupe Method [NEW] found by me

Updated Hyper Dupe Method with NO item risk or max quantity

Easy Duplication Glitch For Zonai Devices (Go Into A Corner,

Possible new dupe glitch discovered? Or more or less a variation

What Just Happened? Accidental Item Dupe...

New Extremely Fast Dupe Method Found Working For 1.1.2 (Original

I saw this dupe for bows on here, this is the set up that I found

By far the best way to dupe bomb flowers. Even the slow dive

Tobio’s Hollow Cave Entrance Dupe Glitch: In Action