Only if you were able to buy them and then use them to buy gas gift cards at OM, then sell them to gift card Zen or cardpool at 10% off, you would break even at least minus postage, but would get miles for the purchase.
You would not be getting the 5x miles for an ink office supplies purchase.
The big IF, is does OM accept it's own gift cards for other gift cards?
JudyJFLA