Once, for an old cosplay project, I had created a set of four energy-based micro-tools out of a set of pen flashlights. The goal was to turn something that looked ordinary into something that looked extraordinary. With the additional capabilities of 3-D printing and newer LED technology available to me, I have updated that set of props to something that I think would be more worthy of showing off.
Each tool has an associated effect to it. The Monoatomic Plasma Welder flickers with an orange, flame-like light, while the Dimensional Interphasing Tool uses flickering and blinking green lights to achieve a shimmering, almost eerie effect. The Sonic Rotary Tool, of course, does not light up but merely buzzes shrilly, as one might expect from something that uses sonic waves. Finally, the 2-D Planar Phase Slicer shines a thin, blue line of light.
I haven’t decided what to do with these yet, but I may carry them in the pockets of my lab coat while out and about at an upcoming sci-fi con.