Now here is a brilliant piece of machinery. Aside from being able to print receipts of your basic calculations, this calculator also has a hidden spy cam! Although I can think of some unethical uses for this little gem, I am more interested in finally capturing the villain who has been stealing my pens and replacing them with highlighters to offset the growing empty space in my pen jar. It comes with a remote control, or can be activated via motion sensor. Get yours here.

Via UberGizmo