Tom Hanks is currently on Broadway for his play 'Lucky Guy', and both John Stamos and Bob Saget were there to support him. According to the Huffington Post, Hanks is a big fan of Full House, and it looks like Stamos and Saget returned the favor.

John Stamos is best known for his work on 'Full House
At the curtain call of 'Lucky Guy', the cast of the play stayed on stage and collected donations from the crowd for the Broadway Cares/Equity Fights AIDS campaign. Hanks auctioned off one of the props used in the play [a one of a kind reporter's notebook], and who should buy this notebook? Well, none other than Saget and Stamos.
The bidding started low, but it soon ratcheted up when Saget and Stamos started bidding on the item. It was said to have sold for $4000, and one of the cast members ended the auction with, "Bob Saget, rockstar! John Stamos, rockstar -- there's two one-of-a-kinds!" Stamos also tweeted after the show, saying, "Saw pal @TomHanks be so damn good in 'Lucky Guy' on Bway-@BobSaget & I won the auction for @BroadwayCares -- amazing night."

Tom Hanks is currently starring in the Broadway play 'Lucky Guy'
While Hanks is on Broadway and Saget has been continuing to narrate How I Met Your Mother, Stamos has been guest starring on the New Normal and shooting scenes for Necessary Roughness.
John Stamos on the Late Late Show