A bank vault as a slot symbol

A bank vault is probably the safest place in the World. 🔒🔒🔒
The robbers are aimed precisely at it, because are countless riches in it. 💰💵💎
On the illustration we see a hole in the wall leading to the gold bars. 💣⏱💥
This project you can find at our site:
http://artforgame.com/the-heist/