Minecraft 1.16.5
Forge 36.0.10
Lost Trinkets 0.1.18
When equipping the Butcher's Cleaver in my Lost Trinket slot and killing several cows and sheep, no bones drop.

Can't reproduce this bug.

It's a 10% drop chance so perhaps you just got really unlucky?

I'll give it another go and report back.

UPDATE: I was mistaken and had poor results on my initial testing. My apologies for not being more thorough. Thanks also for adding a config option for a max trinket limit! <3