How to Make a Water Wheel (with Pictures) - wikiHow
Glue the paddles to one of the wheels at an angle. Take the 1.5 in (3.8 cm) by 2 in (5.1 cm) paddles that you cut out and glue them to the wheel with the shorter side down. Apply fast-drying super glue to the edge of the 1.5 in (3.8 cm) side of the paddles and press the glue side down to the wheel.