Boil eggs for 14 minutes, drain, allow to cool (cooled eggs peel easier).
Peel and rinse the hard-boiled eggs.
Slice lengthwise and put yolks in a bowl.
Add remaining ingredients (except olives) to yolks and mix well.
Spoon (or use piping bag) mixture into egg white cups.
For spiders, slice olive lengthwise to make body.
Slice the remaining half into small sections to create legs.