Most party rental operators leave 20–35% of potential revenue on the table by offering only their core inventory. A customer booking a bounce house for a Saturday birthday party is already spending money and already trusts you enough to hand over a deposit. That is the best possible moment to offer them something that makes their event better — and your invoice larger. Here are 12 add-ons that rental operators across the country consistently report as their top upsells, plus the framing that makes each one convert.
1. Generator and Power Package
If you rent inflatables, generators are a natural pairing. Many event venues — parks, fields, private backyards — don't have convenient power access. Offering a generator rental alongside the bounce house removes a logistical headache for the customer and adds $75–$150 per event to your invoice.
How to present it: Don't list it as an afterthought. Add it as a suggested companion item on the product page: "No outlet near your setup area? Add a generator — $95." Customers appreciate the proactive problem-solving, and the upsell converts at a significantly higher rate when it's framed as a solution.