Take this, for instance ...

Images © 1990-2008 Stampin' Up!®
Supplies used:
Stamp sets: Always
Ink: Close to Cocoa, Whisper White
Cardstock: Pretty in Pink, Rose Red, Close to Cocoa, Whisper White
Other: Pretty in Pink 1/4" Grosgrain Ribbon, Stampin' Dimensionals, Stamp A Ma Jig

The little row of flowers from this stamp set placed under the main image just seemed to tie the card together and finish it off. I liked that bit.
Images © 1990-2008 Stampin' Up!®
Supplies used:
Stamp sets: One of a Kind
Ink: Perfect Plum, Certainly Celery, Whisper White
Cardstock: Certainly Celery, Perfect Plum Old Olive, Whisper White
Other: Certainly Celery 1/4" Grosgrain Ribbon, Boho Blossoms Punch, Stampin' Dimensionals, Stampin' Sponge, Stamp A Ma Jig
The samples in the catalogues are there to provide inspiration for you, so why not use them? You can even check out pages 155-159 of the main catalogue to see exactly what supplies have been used to create each of the beautiful projects throughout the book.