Wyrmling bones

Wyrmling Bones is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "Ew it's a pile of bones."

It has a Grand Exchange buy limit of 3,000 every four hours, a high alchemy value of 1 gp, and item ID 28899.

View on OSRS Wiki

Wyrmling Bones shows an active flip setup with a margin of +67 gp and 231,335 trades over the last 24 hours.

At the buy limit of 3,000 every four hours, max profit per cycle is about 201.0k gp — high margin with healthy liquidity.