In 2012 I won the 'Design Your Own Sonic-Screwdriver' on the Replica Prop Forum with this design. I designed it to have a drill like look to the top end with the 4 prog 'chuck' holding the emitter. The blue center I got from looking at modern medical devices. They sure seem to love light blue. The bottom sonic-lance I went with a steampunk feel. It's also a heatsink. This sonic has 8 different colors chosen by twisting the diamond-grip part near the top.