smilemakers the polar express stickers - prizes and giveaways - 100 per pack smilemakers all aboard to the north pole! each box of these classic stickers features 5 assorted designs featuring characters from the children's book turned movie the polar express. a great reward for your patients this christmas! 2 1/2 inch square. contains 5 assorted designs. made in the usa. manufacturer certified hypoallergenic and latex free.