First of all, this thing really exists Not at the gym.

But I'm not sure what you want to do. If you want to ride a bike at home with the rear wheel facing up, it's called riding a platform, which is very expensive. I've only seen it online and sold it in some auto shops. If you just want to put your bike aside, it's easy. I bought mine online, tens of dollars, which is quite cheap.

I hope it helps you ~