Val, here is my idea for a bot. I used to draw him all the time, and I have much better pics at home somewhere.

This is a 1 minute or less quick sketch here at work on paint to show the idea ( laugh )

A small bot that hovers about, his lower round body would be partially see thru, filled with electricity and lightning.

The body above would melt from transparent to a kind of Shiny metal segmented section on the neck (think of the Xmen series with that guy that turns all metal) That kind of segments. His antenna would be segmented also, and the antenna balls would be small see thru sections full of electricty as well. Eyes are standard round robot eyes, with eye covers that blink. :) Also..his neck can grow longer or shrink as he needs, each segment withdrawing into the larger one below itself.