I know about Blood Pig and Knivesies from Curse of the Crimson Throne, and I know that Second Darkness has several types of gambling games, but what else does Golarion have to offer in terms of games that require PC skill to play? I couldn't find any more in the other APs, but I admit I was only skimming at the time.
Off the top of my head, there's a starknife-throwing contest and a literal "catch the greased pig" game in The Feast of Ravenmoor.
Check out the Rise of the Runelords board for some homebrew examples of midway-style games at a street festival.