KidWind Sound and Light Board, simple power output board that comes standard with the MINI Wind Turbine, great way to demonstrate power output from small electrical devices, needs at least 2 V to start working
Electric Paint Pen is like a liquid wire. It acts as a conductive adhesive and can be used as a capacitive sensor. Suitable for application on a wide range of materials from fabric to wood to paper. Nontoxic, dries in under 15 minutes to become conductive, Size: 10ml tube
MDF Wheel, 6mm thick fibre board, 34mm and come with drilled centre holes for 4mm dowel, There are also available in 54mm and 74mm or you can order a mix bag