Switching gears--- This idea could be used for any type of party. I had a friend use this same concept with a stack of 3 gifts (one wrapped in polka dot paper) paired with polka dot decorations and gerbera daisies at a baby shower.
Imagine them wrapped in brightly colored paper with a big bow at the top for a kid's birthday party, paired with balloons and streamers for a true "Birthday Party Theme."
Tiffany blue boxes trimmed in white would make a perfect bridal shower decoration.
For a more feminine look, a small bundle of flowers could be anchored to the top instead of a bow.
Wrap single boxes of varying sizes in coordinating papers and cluster them as the centerpiece. Wrap small, single boxes indentically and group them in a fancy centerpiece to serve as decoration, but also as favors when you fill them with your party's parting gift.
A shower filled with these centerpieces could be topped off with a matching cake.
My favorite part of this whole idea: the price! Who doesn't have gift boxes and wrapping paper lying around?!?! Again--- if you know this will be your theme for a future party, how great would it be to get all your supplies 50% off after Christmas! You could just pick up the boxes if the paper wouldn't match your theme, or a roll of silver or gold can be paired with most colors to add a little 'something.' Planning, planning, planning!