Here is one of my Stampin' Up! Convention swap cards.  A long time ago I did a black and white swap where obviously we only used black and white.  That has always stuck with me as a very simple and sometimes elegant way to stamp.  This card is stamped on Glossy White cardstock with Black Stazon ink.  You just have to be a little careful as the glossy paper is slippery!  The "medallion" is stamped by coloring on the stamp with various markers.  This was too time-consuming for making 40 swap cards copying this design, so for those I used the Baby Wipe Technique as seen in this post.   I've been using the Rhinestone Brads a lot also.