I’m playing along with ColourQ #311 using Penny Black stamps and dies. Here’s my take on the challenge colors with a CAS Halloween card:
I cut the BOO (Penny Black 51-077 Eeek!) and haunted house (Penny Black 51-073 Haunted Hollow) from black cardstock, twice each for extra depth. I backed the house with the Wisteria Wonder cardstock. The moon was cut from Kiwi Kiss and the rectangle from Tangerine Tango. I stamped a sentiment from Penny Black 30-185 Halloween Critters in Versafine ink on the card base (the font has a scribble that adds a bit of spooky!).