Take the opposite approach for a surprising take on words. Use white space and design around it for maximum appeal. This could be used with any color scheme and might be fun to do a time lapse of someone drawing around the words being advertised.
'OH' has been created exclusively for Print For Good by Craig & Karl. 50cm x 70cm, 2 colours (blue, and red) printed on Mohawk Superfine Ultrawhite Smooth (270gsm), each individually hand pulled. Edition of 50.