If only all Twitter trends were as magical and side-splitting as #PotterABook. Today is World Book Day, and somewhere along the way Harry Potter fans decided to celebrate with this new hashtag. The results have been as inventive, inspired, funny, and unexpected as anything author J.K. Rowling could produce.

It's not too late to join in with your own suggestions, but here are just a few:

It's possible Barnes and Noble started this earlier in the day with this tweet:

Congrats to everyone, because there is some brilliant work happening here. Accio your imagination, and tweet out your own Potter titles.

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