I watched an inspiring tutorial, by Dawn McVey of Papertrey Ink, on how to use different patterned papers. It is important to keep in mind the pattern sizes and colours when making choices. The watch is another icon that can be used to make cards masculine.
Stamps: image (CTMH), sentiment (PTI)
Papers: white cardstock (Georgia Pacific), patterned (SEI Grandpa's Attic)