The tangy, squirmy candy treats on the Gummy Worms Visa Gift Card are wildly popular the world over. German confectioner Hans Riegel, of Bonn, Germany, is usually credited with the invention of gummy candies in 1921. Riegel used gelatin as a key ingredient, although the Turks and Japanese made soft candies centuries earlier with corn starch and rice. The sweet treats first were shaped like the dancing bears then popular at European festivals. Gummy worms come in delightful flavors simultaneously sweet and sour. Celebrate gummy candies with Gummy Worms Visa Gift Cards.