Express Party Supplies is an Australian online store offering a wide variety of party decorations and supplies. They cater to events like birthdays, weddings, anniversaries, baby showers, and seasonal festivities such as Halloween. The store provides themed party items, including balloons, tableware, costumes, and decorations, all available for fast delivery across Australia. They offer discounts on various products and are designed to make party planning convenient with an easy-to-navigate website.