It's a party supplies store they have just about everything
It's not a food sellers it's party equipment and materials including juileres
I tend to think they would have to have something like what you are looking for available for sale. You can take 2 courses of action to help yourself though. 1. You can call them directly and they may be able to tell you if they have pizza party decorations specifically. 2. You can think the season and use what's readily available this time of year, the colors of the Italian flag red, white and green! Throw in some red and white checkered table cloths, maybe some mustache decorations, cups of Italian bread sticks on the table, and even if your pizza is oven ready or came from dominoes have a wooden long handled pizza board and real pizza cutter and you can decorate for a pizza party without having decorations that have pictures of pizzas on them :)
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