You see the ice cream stall after you have taken the fairy home with you. After that just go to the park and click on the wander option. After some hit and trials you will get the stall.
Strange. I fed the fairy all the fruits she wanted, but each time I visited her after she would just say the same thing about being ready. Never had an option to take her home.
I mean, you just have to feed the fairy all the fruits one by one in the ascending order of size...starting with the small one and going all the way to watermelon. After that if you visit her the next day she would be too fat to do anything so you take her home with you for the time being.
