Both of the cards below use a shaker window for the focal point.  Love it!  We made the blue card in my November clubs and the red one was part of a class.

Stampin' UP! Seasonally Scattered Jeannine Tarrio Christmas Shaker Card


Stampin' Up! Shaker Card Jeannine Tarrio

The above projects were in a class that used the Project Life Seasonaly Snapshot Accessory Pack in a different way.

Shaker Window:  
1.  Stamp saying on a 3" x 4" piece of Window Sheet and let dry.
2.  Layer the Window Sheet on a 3" x 4" piece of cardstock and use Washi Tape on three sides to seal edges together.  Do not tape fourth side yet!
3.  Insert sequins between the window sheet and card stock, then seal the last side with Washi Tape.
4.  Adhere window to card front with Stampin' Dimensionals.

Two more versions:

Mingle All the Way Shaaker Card Stampin' Up! Demonstrator Jeannine Tarrio


Try making one of your own.  Stampin' Up! Window Sheets #114323 are on page 192 of the Annual Catalog.