Generally 1 month in advance will be sufficient to secure the items you want, however we cannot guarantee that. Saturday is the most popular day for events, so planning for a Sunday party will help get the items you want. December is generally completely booked out well in advance, so get in early if you wish to hire before Xmas. During summer our waterslides are in very high demand, so again if that is what you want, make sure you contact us early so that you are not disappointed.