Okay -- DOJ requires all published characters to have a special effect listed for all powers (even if it is a simple as "fleet footed" for an extra inch of Running). What I'm wondering is, what's your favorite special effect you've seen for a character? This can be in an offical DOJ product or something made for a personal setting.
To start with, I'd have to go with Captain Chronos, who gave us "No Sleep Till Brooklyn," Walkin' To Jerusalem," "Gone Out For Food," and "The Best Omnichromometer Ever Made."
A close second is Bulldozer, with "Ha! You Think You Stupid Attack Can Hurt Me?".
And then there's the Black Harlequin with "Look What I Made!" and "Not-So-Silly String."