It’s the perfect weekend to build your very own Bluetooth Star Trek communicator, so you can stay in touch with the folks on the Enterprise. You don’t want to get stranded on a foreign planet do you? This project will take a little skill, so just be aware that you’ll have to cut a circuit-board, drill some holes, add a serial port, a Bluetooth module, and a microcontroller.
However, when it’s done you’ll be placing and answering calls the same way James Tiberius Kirk does. If you want to give it a go hit the link to get full step-by-step instructions.