Mix all of the cheeses together thoroughly either by hand or using an electric mixer. Add Worcestershire, garlic powder, cayenne pepper and sun dried tomatoes. Mix again to completely combine. Place in the fridge to cool slightly.
Lightly coat the plastic mold with cooking spray and line with plastic wrap.
Lay strips of prosciutto into the mold being careful to leave some gaps between the prosciutto.
Bring the cheese mixture out of the fridge and add heaping spoonfuls into the mold. Using your fingers press the cheese mixture firmly into the mold making sure to fill each finger. Smooth out the top and wrap prosciutto over the cheese. Cover with plastic wrap and return to the fridge to firm up.
Take out about 1 hour before serving. Flip over the mold and the hand will pop out. Remove any excess cheese around fingers to make the hand look more realistic.
Sever one digit and cover the end with blood. Tear around the end of the wrist and also cover with blood. Insert a knife in the center of the hand and add blood to the wound.
Serve with crackers, toast points, grapes or other fruit.