Catering Supplies

Whether you’re throwing a 30th birthday for your co-worker, a surprise birthday for your dad, a 1st birthday for your little girl, or an 9th birthday for your little man, we’ve got the most incredible selection of birthday party supplies at the best prices on the market. We know it’s important to have a party that doesn’t look the same as everyone else’s. That’s why we are careful to select products that are high quality, local, and unique. Our tableware, favors, decorations, balloons, piñatas, and catering supplies are all selected with you in mind. We know how important a party is. That’s why we want to offer you the best possible items. Add the finishing decorations to your birthday party by decorating your guests and yourself! Our year-round costume shop will get you suited up for any birthday party you are throwing or attending… We have the best selection of costumes in the Bay Area, and we’ve got all the matching accessories too–boas, leis, tutus, stockings, hats, suspenders & bow ties, mustaches and beards, wigs, makeup, and more. The best way to get inspired is to walk on in to your nearest Diddams. We’re here to help!