Junk_raft
A junk raft is a type of home-built watercraft made of plastic bottles or other recycled materials constructed by artists and community-minded groups organizing recreational flotillas,[1][2][3][4] or by environmentally concerned individuals seeking to draw attention to the problem of floating debris and the need for recycling.[5][6] It can also be an improvised small, functional watercraft from readily available materials.[7][8]