Now it’s time for a mash-up. Form factor: Funky/Superfunky. Li-Po battery usage: JeeNodeUsb. Accelerometer: Gravity Plug. Driver for the vibration motor: taken from the body interactor (BI). All ingredients are put together and used for a pcb design. The board is 32x21mm. The parts can be bought for 15€. Additional cost are for assembling and the PCB production.
The first design looks like this: