But when an adult tries for the same great setup, ... this birthday girl's cake smash was very similar to the others we've seen except for one major difference: she's just a little bit older.

Adult birthday parties are customizable here. For example, a bash can be arranged in the VIP Lanes and Lounge, complete with four bowling lanes, a private fireplace, living room and a bathroom.

You're never too old for a birthday party — even if you have to plan it yourself. And plenty of adults, Long Island restaurants say, are doing just that these days.