When I was a little kid and used to go trick or treating about the coolest thing you could collect for your stash (aside from a 'full-size' candy bar perhaps was a genuine McDonalds gift certificate.) You'd be surprised what one of these could get you back in the late 70's. In fact this is still about the coolest thing you can get even today.
You know what the modern day equivalent for an Adult is? Heck, even a tweener? The Starbucks gift card. Here's how I'd make it simple and better to use. Sell me a card that gets me ANY premium drink, grande size and give me an hour of WiFi access with a little code on the card. Make it EASY for me as a customer, and both a gift buyer and someone that has to redeem these things. I want a little code on the code that I plug into a browser screen and that's it.
I personally would hand these things out like nuts to everyone. "Did I bump into you? So sorry, here have a cup of coffee and some WiFi time on me."
"Wow, this guy didn't send a head shot, but look a Starbucks gift card, let's call him in."
Would you use this? If Apple made coffee we'd have these already.