Nice and new idea mate really nice, if you could put the donation links and addresses in a drop down menu just saying: donations. it should

Also be placed in the bottom of the screen not on top, maybe every few seconds a shooting star could pass by to make it cooler?

You should also make the rockets to have the volume of the coin as their fuel but like a liquid inside of each rocket and should be visible.

Like if a coin has low volume then it should have 1/4 of it's body filled with fuel.