Create a Justice League of America type group for the OTs. A league of superpeople is useless without an enemy. Create an evil, rival group of superpeople. MO would consist of Clears who are just embarking on their journey to full OTness. As you and the OTN pound your MO victims you are going to have to shout catchy phrases.
Kids love 'em.
I love 'em. You love 'em. Let's look at your current crop of catch phrases. Think up new catch phrases.