Party Proof Playing Cards by GAMESBRETTSKI. (Waterproof) Beer proof, Vomit proof, Dbag, Thot proof etc. Well maybe not those last things but definitely Waterproof! PVC Playing cards for any party, Drinking game, or Solitaire for those crying themselves to sleep at night. There's also a secret trick to opening them, can you figure it out??? .... Im sure you can its not that hard.