I think 'gimmicky' is okay - if it makes you stand out from the herd, that's not bad.

Had an idea to get some cards with those "mood" squares on them -- and put that one side of my card with "Check Your Mood Here: []" and "Blue-Green: You're in the Mood to Buy; Orange-Red: You're in the Mood to Sell! Either Way, Call Me Now!" . . . or something corny like that!

I use just our logo, which has very bright colors that contrast strongly with the white background and the black text. No picture of me, please.