Step 1 - Cover Visible Skin

Step 2 - Become a Ghost

Step 3 - Fabulous Eyeliner

Step 4 - Death Twirl

Step 5 - Wig (after discovering its much easier than cheap black hairspray)

Step 6 - The Ankh (the only newly purchased part of the costume)

Step 7 - Gaiman-esque Leather Jacket

Step 8 - Top Hat - like a boss (borrowed from Harri)

Step 9 - PROFIT!