And maybe add an entry for completing it to the character summary?

I think the appearance reward should be a little better--maybe a couple more potions of beauty--since kissing the frogs often ends up with an appearance reduction and you end up worse off for trying to complete it. Otherwise this is just a sort of red herring quest, although maybe that's the idea?

Maybe the creator could also contrive a male counterpart to this quest in a far off future...