Have you tried SRM's new white sentiments from our We've Got Your Sticker collection? They work wonderfully on dark cardstock or patterned paper. I featured a few cards by Tobi yesterday (scroll down) using black greetings, and here's Nina Brackett using white!
SRM Stickers are the perfect final touch on Nina's richly colored cards;
All of us at SRM Stickers would like to wish Nina a very Happy Birthday today! We love you, Nina!