Csaba Bleuer’s latest DIY invention would be the LED Wave Display which will display text in mid-air simply by waving it back and forth. This is somewhat reminiscent of the Fan Motor Spinning LED Display, where the spinning display inspired this creation albeit with the addition of a quartet of AA batteries. A tiny circuit board is mounted on the new device alongside a switch which has a motion detector on top. Folks who are adventurous enough to venture out on their own can always contact Csaba for the code.