Here is a cool gift idea for those who love magnetic fluid. The sovenomund Dancing Ferrofluid Speaker comes with Bluetooth connectivity and 4-color adjustable light. It has a glass and ABS plastic construction and lasts up to 8 hours on battery. You simply have to connect your phone and play a song for the fluid to come to life.
This speaker gives you a panoramic view. It measures 3.9 x 4.7″.