Here's my card, made with just two seconds to spare!
The images and sentiment are all from MFT Fab-Boo-Lous Friends stamp set. They were stamped, colored with Copics and then fussy cut and adhered to the orange background. The diecut opening was made with the MFT rectangle peek-a-boo window die. I smudged a little white ink around the black cardstock to add to the ghostly theme. I wanted to add a little stamped bat in the upper corner of the orange cardstock piece but ran out of time. These little ghosty friends are so cute!