DFRobot Gravity Flexible RGB LED Matrix Panels

Now get one of these in apa102 pixels at this price and I'll jump on it. These you really only can use an arduino or similar due to the timing mashed protocol. apa102 uses a standard SPI bus interface so you can use a RPi or whatever else no problem.

agreed! found a wiki link for it https://www.dfrobot.com/wiki/index.php/Gravity:_Flexible_8x32_RGB_LED_Matrix_SKU:_DFR0462