Wednesday may be hump day to many but for the rest of us it’s new comic book day! For this new comic book day Mondo is releasing a very special exclusive cover to Adventure Time #17 in conjunction with BOOM! It was created to celebrate the opening of Mondo’s new Adventure Time / Regular Show group art show last Friday. The variant cover features a design by JJ Harrison that pays tribute to the original E.T. movie poster, and goes on sale today, Wednesday, June 26th, at the Mondo online store for just $10. Pick up one of these limited edition comics before they’re gone!