One of our FAVORITE things about FTC is that we give the players total creative control over how you implement the Consequences. We provide suggestions, but ultimately you decide. Here are some quick examples (we'll likely release an update with a video about this as well)
Cards Against Humanity, or What Do You Meme: The dealer also chooses their LEAST favorite card.
Monopoly: Land in Jail? Consequence. Land on a property with a house or hotel? Pay up OR do a Consequence.
Operation: (If you think this isn't for adults, try it after a few beers) Nose lights up = Consequence
Any game: Someone makes a mistake... Consequence!
We'd actually LOVE to hear how players might use consequences for different games... let us know in the comments!