ThinkGeek's new Chocolate Zombie Bunny will work for both Easter or Halloween. Save the world and bite his head off.
It's a good thing the virus turned his flesh to delicious white chocolate. All you need to do is sneak up on him (easier said than done, we've lost several warehouse monkeys to rabbit attacks) and once you've nabbed him, take him out quickly. Use your teeth, brave Knight! Grasp the rabbit firmly in your hands, shove his head in your mouth, and behead him with a single chomp.
Unfortunately, the sold white chocolate bunny is not real. However, ThinkGeek does have a form here where you can vote for the ThinkGeek April Fool's products you think should become real products.