Hob Goblin would own both, as his identity was never found. They even once thought it was J. Jonah Jameson. and Harry continued as the Green Goblin, rather being called New Goblin. then Norman comes back (cuz he never died) and goes on as Green Goblin II. ppls please read the comics, as there are some things out of line from the movies. And yes, the Green Goblin's glider in my opinion was much cooler and it was more accurate.
Besides, nobody can resist the power rangers! (Green Goblin looked much cooler in the movie with his mask, Harry hardly fights with it on.)