Monkey bones

The Monkey bones is a free-to-play Old School RuneScape item — “These are small monkey bones.”. Its Grand Exchange buy limit is 3,000 per 4 hours. Right now it buys at 321 gp and sells at 346 gp — a net margin of 19 gp (5.9% ROI) after the 2% Grand Exchange tax of 6 gp. High alchemy yields 1 gp.

To flip it, place a buy offer near 321 gp and a sell offer near 346 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.