I do not know who would sell Lemonade for Bitcoins because I would not do that because I do not think that I would make much money with it at all.
This would be a good thing for kids who want to make money.
It might be a classic idea but I do not think that this is going to help anybody to make some serious money with bitcoin so it is better to just invest.
Maybe that it would work with kids but you van then just ask real money for it.