Swampbark helm

The Swampbark helm is a members-only Old School RuneScape item — “A rather interesting smelling helmet.”. Its Grand Exchange buy limit is effectively unlimited. Right now it buys at 31,059 gp and sells at 39,666 gp — a net margin of 7,814 gp (25.2% ROI) after the 2% Grand Exchange tax of 793 gp. High alchemy yields 9,000 gp.

To flip it, place a buy offer near 31,059 gp and a sell offer near 39,666 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.