Charms Blow Pops Sour Apple flavor. There are 48 lollipops per box. Delicious sour apple flavor coating with bubble gum inside. The innovative Blow Pop remains a towering achievement of candy invention. Introduced by Charms in 1973, Blow Pops offers two treats in one: a chewy, bubble gum center surrounded by a tart apple-flavored hard candy shell. If you were a kid in the 1970s, you probably remember how exciting it was to find a house giving out Charms Blow Pops at Halloween or discover a basket of them at a birthday party or bar/bat mitzvah.