We constructed the light and fan in parallel circuit;
the two-speed fan circuit, which was all the cooler when we flipped the motor piece so that the fan would take off like a flying saucer;
and this was supposed to be some sort of music siren whistle-activated device, which we couldn't get the siren part to work. Bad connection maybe because even when we switched the components around, the music would stop working and we'd get the siren. Do I smell science fair project?