Just keep clicking on the part of the milkshake you want to change until you like it. (You can change the sprinkles, whether or not there's a cherry, the flavor milkshake, and the whipped cream) You can comment below if there's anything you think I could add to make it better.
Lots of thanks to @ebraum29 for literally everything. She taught me how to do all of it. I copied all the things she did while she was teaching me.