Here is a thought.....for every Police/Fire brick that is sold, offer a special notation on the brick designating the person as a "Legacy" (or some other designation; Charter, Founding, etc.) that will be included for an extra donation; say an extra $100 per brick for a total of $150 to be designated in some way.

If you get 200 Police and 200 Fire legacy designations, that's an extra $40,000 grand.

Just a thought. If you give something you will get takers. As far as the brick designation...something as simple as a "star" would work and I doubt the engraving cost would be that much extra.