Bounce houses are a fun and proven concept. Rental businesses are really financial arbitrage. You don’t have to own the asset outright. There’s an easy way to expand the business. If you don’t have good credit now, get started with some used equipment and make enough money to clear it up. There are auctions for bankrupt bounce house companies that were spread too thin. Once you do have good credit, open a 0% business credit card and obtain additional units. Then you can scale it to the point of market saturation.