Dana Claire Simpson draws an incredibly cute and often hilarious comic strip called Phoebe and Her Unicorn and, let's get this out of the way, it's a lot like Calvin & Hobbes. Phoebe even looks like Calvin's nemesis, Susie Derkins!
The biggest difference is that other characters can interact with the unicorn, whose name is Marigold Heavenly Nostrils. Marigold is enormous fun. She's so absolutely full of herself that Phoebe meets her as she is so entranced by her own reflection in a pond that she doesn't notice a human kid stomping around in the woods. Thereafter, Marigold casts a spell so that nobody sees anything particularly noteworthy about a haughty unicorn hanging around.
The comic is suitable for all ages, and I approve of having a fun heroine for little girls to enjoy. The collected edition collects the original run of the strip as it appeared online - it entered print syndication a couple of months ago - and is similar in shape and appeal to the book versions of another great schoolage comic, Big Nate. Happily recommended for all ages.