Candies that begin with the letter "O" include orange slices, Orbit chewing gum and the Oh Henry! candy bar. These items are widely available.
Orange slices are a jelly candy made in the shape of an orange wedge and coated in coarse sugar. Many companies make this type of candy, and it can be found in individual bags or in bulk.
Orbit gum is a brand of sugar-free gum that freshens breath and comes in many flavors, both in stick and pellet form.
The Oh Henry! bar is a candy bar brand owned by Nestlé. The chocolate bar first appeared in 1920. It is named after a patron of the original creator's candy store.