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The parade float got its name because the first floats were decorated barges that were towed along the canals with ropes held by parade marchers on the shore[citation needed]. Floats were occasionally propelled from within by concealed oarsmen, but the practice was abandoned because of the high incidence of drowning when the lightweight and unstable frames capsized. Strikingly, among the first uses of grounded floats – towed by horses – was a ceremony in memory of recently drowned parade oarsmen.[citation needed] Today, parade floats are traditionally pulled by motor vehicles or are powered themselves.