To shy to confess? A beating heart might help you out. Express it. Display it, with this tiny, portable, magic LED matrix!
This tiny display has 64 red LEDs packed into a 8*8 dot matrix. It integrated ATmega32u4 as MCU and has built-in onboard shock sensor, with which you can display pre-programmed image when the module is shaked. It also comes with a 140mah Lipo battery which can last for 4 hours of displaying. It is great for displaying image/text or creating bizarre patterns, and is highly portable and convienient to use. Of course you can program it via IDE or via Mind+ graphically. With just a few steps, you are ready to impress others!