"Hell money" resembling US dollar notes, like the ones shopkeeper Ang Siew Siew sells at her shop in Penang, Malaysia, is in demand. Due to the weakening ringgit, there has been a surge in demand for fake cash - called hell money - resembling strong and stable currencies such as the US dollar, Singapore dollar and Chinese yuan. Devoted descendants observing the Qing Ming Festival burn the money as an offering to their deceased relatives. "They claimed US dollars would be useful if their ancestors need to go on a holiday in the afterlife," said Ms Ang.