Over the past few days, Chris Hemsworth has been active on social media while Thor: Ragnarok continues production, with the actor sharing photos and videos from the set at Village Roadshow Studios in Australia. We still haven't gotten a look at the actor in costume yet, or even seen his iconic hammer Mjolnir, although the actor's photo yesterday showed him holding up a regular toolbox hammer. Today we get our first look at Mjolnir from the set, as part of an epic prank Chris Hemsworth pulled on director Taika Waititi.

Taika Waititi shared a new photo on Twitter that showed Mjolnir resting atop the director's toilet. Obviously, if this were the "real" Mjolnir, only Thor himself could lift it off the toilet, hence the gag. Still, this is the first time we've seen Mjolnir on the set, which is interesting since there have been rumors that Thor's mighty weapon may actually be destroyed in this sequel.

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Early this year, Cate Blanchett was rumored to play Marvel Comics villain Hela, which was ultimately confirmed by Marvel. The initial report claimed she is joining forces with Thor's villainous brother Loki (Tom Hiddleston), as Hela banishes Thor from Asgard while destroying his iconic hammer Mjolnir. Naturally, that was never confirmed, but it was believed that this banishment is what leads Thor to go on a "cosmic road trip" with Mark Ruffalo's Hulk. Other rumors followed which claimed that, after his banishment from Asgard, Thor winds up on a gladiator planet, where he's forced to fight the current champion, Hulk.

Of course, that rumor about Mjolnir being destroyed has not yet been verified, and we likely won't get any confirmation in the near future. All we do know for sure is that Thor, Hulk and Loki will be joined by a few new characters, including Cate Blanchett's Hela, Jeff Goldblum's Grandmaster, Karl Urban's Skurge and Tessa Thompson's Valkyrie. Idris Elba and Anthony Hopkins are also set to return as Heimdall and Odin, respectively.

Taika Waititi is directing Thor: Ragnarok from a script by Christopher Yost, Craig Kyle and Stephany Folsom. Production is scheduled to run through October at Village Roadshow Studios in Australia, with Kevin Feige producing. Take a look at Chris Hemsworth's prank on Taika Waititi below, and stay tuned for more as filming continues on Thor: Ragnarok in Australia.