I2Cash stands for "Invisible Internet Cash", so it's a capital "i".
This will be the logo of a new private and anonymous cryptocurrency. You can think of bitcoin, even though this will be completely different. You can find a list of crypto-currency logo design here:
It is good if it looks nice on both white and black background.
We would like to have one or more bills in our logo, not a coin as in Bitcoin. The name in the logo is "I2Cash" - We don't know if we want the "Invisible Internet Cash" name in there or not, probably not, but just put in there in cash someone makes a logo with it that looks cool.
You can think of our cryptocurrency as anonymous cash and use that for inspiration. I have attached a few images showing the colours we like to use in our logo. You can use one or more of these colours.
The logo should consist of two parts, the image part and the name. The image part has to look good in a small format, like you can see here: