Spray paint keys white on both sides, two coats should be sufficient.
Create hangers using floral wire. Bend the wire in half to create a loops and twist to secure. You can leave your wire plain or add beads before twisting to secure through the hole in the top of the key.
Add earmuffs by hot gluing pieces of pipe cleaner across the top of the key, covering up the wire. Add a pom pom to each side.
Create scarves using fabric, yarn, pipe cleaners or even old t-shirts. Use hot glue to secure.
Dab pink paint onto a scruffy paintbrush and dab off the excess onto a rag. Lightly tap onto the key to add rosy cheeks.
Use a toothpick dipped in black paint to add eyes and mouths, then use a toothpick dipped in orange glitter paint to add noses.