Quest or activity
Shiny Tooth is obtained during a confirmed quest source.
Follow the linked quest. The source confirms acquisition during the quest, but does not identify a specific objective or say it is awarded when the whole quest ends.
OTHER ITEM
The most direct way to get Shiny Tooth is through Letters to Lunka. Possible loot is not guaranteed if you need a specific copy.
It's some kind of a shiny tooth. Odd, but someone might fancy it. You never know.

Quest or activity
Follow the linked quest. The source confirms acquisition during the quest, but does not identify a specific objective or say it is awarded when the whole quest ends.
Possible loot — not guaranteed
This is not a guaranteed drop. Prefer a mapped pickup, quest, or merchant listing if you are hunting a specific copy.
Follow the mapped pickup or quest source first; it is the most predictable route currently listed.
The most direct way to get Shiny Tooth is through Letters to Lunka. Possible loot is not guaranteed if you need a specific copy.
Listed buy price is 5,000 Denarii.
QUICK ANSWER
Good Home
ITEM DECISION GUIDE
Use verified relationships and acquisition evidence before selling. A listed sell value by itself never proves that an item is disposable.
WHAT IS IT USED FOR?
Follow the quest, recipe, skill or other relation below before deciding what to do with it.
Check verified uses →CAN I SAFELY SELL IT?
The item has a confirmed non-sale relationship. Resolve that use before treating its sell value as a recommendation.
CAN I GET ANOTHER?
Use the confirmed quest, shop, crafting or fixed-world route rather than an uncertain loot pool.
VERIFIED RELATIONS