For true DIY, hack the included cassette mechanism into a solar-powered device using the high performance Miller Solarengine which converts light into impressive bursts of energy! High performance, SCC3733-MSE version.
1.75mm PETG filament for 3D printing. PETG is a new material that is strong and slightly flexible like ABS while being easy to print like PLA. Unlike other 'natural' materials which are an off white, PETG natural is completely clear.