I have seen pucks before as my son has many of them. They are not official hockey puck that the hockey players use in the game. Finally I see an official NHL hockey puck when we went to see the Buffalo Sabres game live.
There is a store outside the arena. They sell many local hockey team merchandise. You name it from clothing, toys or anything. They have it for sale in that store.
My husband bought my son one puck. He has pucks at home but this puck is very special. It only cost $5 for a puck. This puck is the official puck the Buffalo Sabres, our local team, used when they are playing hockey at the arena.
My son is very happy. He uses this puck with the rests of his pucks while playing hockey at the pond. This puck has the official name of our local team on the front and NHL on the back.