Flip it works pretty much like your regular bounce card, just that u are paying more for a more 'pro' look and some hinges so that u can move the card up and down. Would set u back around 50 bucks or more though.
If you are just trying out....go to this site abetterbouncecard.com
Cost only a few bucks to make, and very flexible too, just that u will get stares from people when u shoot outdoors.
An example of a bounce card that works decently well is the ABBC (A better bounce card). You can obtain more info from this site, http://abetterbouncecard.com/. Simple and easy to make, best of all, its cheap