Aaron F Stephenson has PassMaker Pro (iTunes Link) for the iPad in the iTunes App Store for FREE (regularly 99-cents) for a limited time.

PassMaker Pro can create Business Cards, Promo codes, Convert physical cards, Event Tickets, Store Cards, Travel Tickets, Coupons, Generic Passes, Discount Vouchers! You name it, You can create it with PassMaker Pro. Anything you need to get your name out there, or people through your door. PassMaker Pro is the easiest to use Pass generator on the AppStore hands down.

Passes can be generated and attached to emails or linked to social networks such as Facebook & Twitter. Provide the customer your customised advertisement, sales offer, coupon or shopping discount.

Manage passes directly from within the app, such as Editing previously made passes, Emailing directly to your customers or Adding to your own Passbook App. There are multiple ways customers can acquire your passes. Any of your customers with a iPhone, iPod Touch or iPad with iOS 6 or greater installed will be able to access your pass and add it to their Passbook App.