Black electrical tape
Using scissors, trim black mask as shown.
Create a "$" sign on the pillowcase with black electrical tape. Be sure to smooth the tape down with your finger so that the fabric doesn't bunch up underneath. The tape may leave a dark residue that is hard to remove, so please don't use your heirloom linens for this one!
Stuff bag with batting or newspaper and tie off with string.
Make a beanie by cutting 12" off the leg of a nylon and making a knot at the top. Wear all black and stuff some bills in your back pocket.
See more ideas for this simple mask craft here.