I refrained from playing April Fools on my readers, forgive me!
But here are some art related April Fools day pranks that happened around the world on the first of April:
Breaking news: Shark swimming in Detroit river!
And a museum plays April Fools on the prolific forger Landis. Not really...
You mean you have never heard of him before!! He's only a very famous artist. Most people are so scared of not knowing the famous and popular that they will believe anything!
And finally this
I have found that it is hard to find any art related April fools jokes... but Norman Rockwell has always been my favorite so I fall back on him: