The main difference between metal sparklers and morning glories is the chemical composition of the sparks they produce. Metal sparklers, as the name suggests, are made with metal wire coated in a mixture of chemicals that create sparks when ignited. Morning glories, on the other hand, are made from a different mixture of chemicals and produce a bright, colorful flame that burns for a longer period of time compared to metal sparklers. Another difference is that morning glories are usually attached to a stick or handle, while metal sparklers may be hand-held or mounted on a base.