It’s not like we want our friends to break their bones or anything, but you’ve gotta admit that when your mate showed up at school sporting a fresh cast on a broken limb, you couldn’t wait to leave your mark all over it.

Well, now you can do the same for that friend you don’t see that often. You know the one: goatee, plays the guitar, fronts one of the biggest rock bands in the world. If you haven’t figured it out, we’re talking about Dave Grohl.

The Foo Fighters frontman fell off the stage during a recent show in Gothenburg, Sweden and ended up sustaining a pretty serious fracture. Of course, legend that he is, Grohl quickly got patched up and finished the gig.

However, it appears Grohl has in fact sustained a pretty serious fracture and the band has been forced to cancel several European dates, including two sold-out shows at London’s Wembley Stadium and a headlining slot at Glastonbury Festival, which is slated to kick off next week.

Since his broken leg will be requiring a cast, a crafty creative agency has come up with the idea of making a cast anyone in the world can sign. As Diffuser reports, fans can now sign Grohl‘s “virtual” cast by tweeting well-wishes at the micro-site SignDavesCast.

The cast will have space for about 300 signatures, messages, or well-wishes. They will then be rounded up and printed on a flexible cast sleeve, which will be presented to Grohl as he recovers after having surgery on the leg earlier this week.

The idea is the result of a collaboration between creative agency EVB and development company BausCode. “The internet is best when it’s used for good,” said an EVB rep. “Commemorating such a hardcore act as finishing a show with a broken leg felt like just the thing to do with the technology.”

We couldn’t agree more. Grohl used technology earlier this week when he issued a lengthy statement explaining the situation surrounding his poor leg and apologising for the cancelled performances.

In the statement, Grohl told fans that he’s following doctor’s orders to “lay low” for a while. “We’re doing our best right now to work out a plan, so bear with us,” he wrote. “You know we’re good for our word. But for now, I need to make sure we have years of gigs ahead of us.”

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