Just a suggestion from some Legion fans: There’s two new Legion series starting later this year and why not celebrate/promote them by conducting a Legion flight ring promotion like the one for Blackest Night? It does look like the titles that included promotional rings got a sales boost so I can’t see why this promotion wouldn’t do the same. You wouldn’t have to include rings with many titles, just Adventure Comics and The Legion of Super-Heroes and maybe R.E.B.E.L.S.
The flight ring is a quintessential image that represents the Legion of Super-Heroes. It would be a perfect promotion for these two new titles. New fans will get a kick out of these (hey, I’m part of the Legion too!) and the dyed -in-the-wool fans will spasm with glee.