There are plenty of push-up stands available to help you do push-ups anywhere. The pushXpro happens to be a compact device designed to take your push-ups to a new level using stability forces. It targets your upper body and core muscles while putting less stress on your wrists and forearms.
The pushXpro is portable, so you can target your core and other muscles in your body everywhere you go. It lets you try various modified push-ups to keep your body on its toes. Sets you back under $33 at this time.