Bartz's Party Store is Wisconsin's original party store. Since 1947, we now offer the largest selection for all things party including balloons, tableware, decorations, favors, costumes and more. Bartz's has an amazing selection party themes. Popular themed party supplies for Luau, Western and Fiesta parties, as well as others like the now popular Gamer parties and decade parties from the 1920's to 1990's. Stop in and check our our new and expanding toy area. Including some of the most popular brands like LEGO, Playmobil, Barbie, Hot Wheels, Ravensburger puzzles, Squishable and more being adding all of the time as we expand the area. You will be amazed when you step into the largest party store in the midwest with over 20,000 sqft of fun