We are doing A Christmas Carol in our small space and for FOH lighting we only have 5 circuits. However there a couple of areas that I would like to have 2 different colors of frontlight, each at different times. I cannot hang two fixtures because there is not enough circuits and no hard patching either. We don't haven any color scrollers and wheels and there is no catwalk where an electrician can change the color between scenes. I had an idea of adapting some sort of roller shade with a sheet of gel as the shade and placing it in front of the instrument mounted to the ceiling about 1 foot above the bar. Does anyone know how I could motorize these roller shades for cheap, I have looked at pre-built motorized roller shades and the cheapest I could find was around $100 which is about $90 over the amount we have for each one. Or maybe someone might have a better idea for switching color at a low cost.