Abstract: A water toy construction kit includes a plurality of elongate tubular elements and mating connectors, which elements and connectors provide for the flow of water therethrough. The kit may include rigid and/or flexible elements, and the elements may be opaque, translucent, and/or transparent. At least some of the elements may include radial passages therethrough, either in line or randomly spaced, to provide for the spray of water therethrough. Transparent or translucent tubes may include solid articles therein, which provide movement due to water flow through the tubes. The connectors may include shutoff valves therein to provide for the selective control of water flow through the individual tubes connected thereto. At least one separate element may be provided, which is actuated by free water flow from the remaining structure.