Crack them out and sell them on SleazeBay with a 1c start and no reserve. You might be surprised at the bids you'll get. Of course, you'll probably get a couple of returns and NEG's to boot. Chris
Unfortunately, the 1907 Indian Head cent is about the most common date of the entire 50-year series, so unless it's a spectacular error, it's not worth slabbing if it has any wear at all on it.
That stinks, I'm sorry to hear that. Clearly, these were not good coins to have graded. The best thing I can tell you is to learn from this...learn why NGC wouldn't grade them so you don't repeat the same mistake. We have all made errors with this hobby and "wasted money" in the process. That's the cost of learning...just like any form of eduction, there is a tuition cost. It's no fun, but it's true.
Did you just submit those two coins? Did you use a dealer to submit them? If so they should of advised you not to submit them.