B.C.
You could ask on freecycle.org for eggs. TONS of people will happy to get rid of them. You could phrase it like "The Easter bunny wants to celebrate (insert name)'s b-day so bad that he couldn't wait until April! Join us for an egg hunt... (insert more info here). :) My soon to be 10 year old girl wants a Mario party. No idea how I'm gonna pull that one off....