Send BTC and get back 120% when another person sends (wallet is charged 1% of payout value, You receive the full 120% payout)
(minimum 0.01 BTC, maximum 3 BTC, do not send from a web wallet neither just from exchanges - blockchain wallet is ok)
Deposits from web wallets, exchanges, below (0.01 BTC) or above the limit (3 BTC) will be dealt as donations.