Heart Shaped Box with LED

3D printed heart shaped box with red LED, which is simulating heart beat. Electronics consist just of ATTINY45, CR2032 button battery, RED SMD5050 LED, push button, resistor, capacitor and some wires..
I used the original design, but I printed just bottom part of the lid and after that I printed the lid holder separately and put it on the push button.

https://youtu.be/UsCT8t6KVLU

https://youtu.be/aolZUn9VYpc