(THIS IS NOT A REAL CRYPTO CURRENCY AND HAS NO VALUE ON OR OFF SCRATCH) e-COIN is a digital currency that changes based on the amount of users on the site. e-COIN mining and selling software is an installable program that mines for the e-COIN. When e-COIN is converted to cash on the program it takes 10% of the e-COIN.
Thanks to BlockBit for inspiration, play here: https://scratch.mit.edu/projects/669020072/ Might use this for a game so you can buy limited items or something.