Party Piñata

Piñata is an item in Plants vs. Zombies 2. They either contain Keys (before 1.7 update), Power Ups, Plant Costumes, Gems, Sprouts, or Coins. They only appear after beating Piñata Parties. During Feastivus, the Piñatas are replaced with presents.

Señor Piñata
This item appears after completing five (formerly three) Parties. It requires three taps to open it and it always contains costumes or Coins (if all costumes have been already unlocked). During Feastivus, it is replaced with a Giant Present.

Trivia

 * Before the 2.5 update and after the 2.9 update, Señor Piñata only appears after completing five consecutive Parties. Missing a day restarts the counter.
 * The costume or Big Money Prize can only be found inside the last piñata. The game places it inside a random piñata after the player choses 2 piñatas.