Build Your Own Tiny Modular Arduino Inside a Tic Tac Box
The great thing about Arduinos is that they come in all shapes and sizes. You can also do it yourself. Instructables user MakersBox did just that with a tiny modular Arduino-compatible board that can fit inside a Tic Tac box.
The assembly uses several components, including an ATtiny capable of running the Arduino IDE. Once you get everything, you can simply put the pieces together and shove them into the Tic-Tac box. What to do with it depends only on you. If you are not a fan of sourcing parts, you can also simply order a kit with everything you need from Tindie .
Tacuino: Low Cost Modular Arduino Compatible Education Platform | Instructables