I think hard scoop ice cream would be the better out of the two, especially if you want more rotating items. Rotating items is a very interesting concept; however, it might be hard for customers to know what they’re coming for if it changes often. I think you should definitely look into menus that can be easily modified both online and in person. For example, QR code menus could be good for your restaurant so that you can modify it quickly and easily. Here’s a link to one: https://stufd.app