Blow up megaphone in pink with text reading Cheer!. CoreAthletics' blow up megaphone makes a great fundraiser. Order a quantity of 50 or more to qualify for a 50% discount (your cost = $2/00 each; msrp = $4.00 each). Update quantity to 50 or more and enter the promotional code MEGA during step 1 of the checkout process. Your discounted price will only be displayed during the check out process after the quantity and promotional code have been updated and you have signed in or registered.