Gee, let's think of something to do with all the pretend money we're gonna make.

还不如假装想想赚了钱怎么花呢。

You can buy merchandise with fun, pretend money. Con: Or as that's known in China, American dollars.

你可以用有趣的玩具钞买东西。弊：或在中国称作“美金”。