Penn & Teller have done so much for the world of magic. But never ones to rest on their laurels, the duo has also become some of the more active magicians when it comes to giving back, especially for their hometown of Las Vegas.

According to a few recent tweets from Mr. Jillette himself, people who donate blood from now through January 1 will get two tickets to see the Penn & Teller at at the Rio. Their offer is for donations at any Southern Nevada locations of United Blood Services. Appointments can be scheduled at the UBS website. Not a bad price to pay for entry to one of Vegas’ top acts. Plus you get cookies!

There's a great need for blood. Give between now & Jan 1 to get 2 tickets to Penn & Teller at the RIO. https://t.co/M74vEUpBC3 #PennTeller #RIOLasVegas pic.twitter.com/enZCMLo2bN

— Penn Jillette (@pennjillette) December 19, 2017