There are some eggcellent (ha) recipes for halloween in their free Fresh magazine this week at Woolworths.
This is the lazy version – hard-boiled eggs with olives on top, cut into spiders.
Their version had the egg yolk removed, blended with avocado/lemon/chilli. Or you could do the old curried eggs, as per http://www.bestrecipes.com.au/recipe/simple-curried-eggs-L6988.html
I bought a handful of kalamata olives around the corner. Cut them in half, removed the seed, and used one half, sliced for the legs. Yes, spiders have 8 legs.