Here is a card I made to cover both the Color Throwdown challenge and Stampin Queens Sketch Challenge. Melon Mambo is definitely not a favorite color of mine, yet somehow I quite like the finished card.
I used a retired set called Love & Care and colored the stamp with markers using all four of the challenge colors. I then ran it through the Designer Frames EF. As you can see, my Big Shot got a fair bit of use while making this card LOL.
Products used (all Stampin' Up! unless otherwise stated):
Stamps: Love & Care
Cardstock: Melon Mambo; Pretty in Pink; Always Artichoke; Flirtatious DSP
Accessories: Melon Mambo; Pretty in Pink; Always Artichoke Certainly Celery markers; Adorning Accents Edgelits and EF; Designer Frames EF; Quickutz Doily die; Pretty in Pink taffeta ribbon