Tye Lombardi (previously at Neatorama) went to great lengths for a special effect Halloween recipe. These Alien Facehugger Pudding Cups have edible Alien eggs and facehuggers, they fizz, they glow in the dark, and they taste good! The instructions are pretty involved, because it's an art project as well as a food recipe. These eggs are made to impress. At least she uses instant pudding and pre-made pie crust. You can use cooked pudding and make your own crust from scratch if you want. If you make these, be sure to take plenty of photographs before you let anyone eat them!
If this recipe is too complex for your lifestyle, you can just enjoy the images of the finished product. However, the components of the recipe will be handy to learn, like how to make pastry glue, the techniques for sculpting pie crust, and the magic of B-2 tablets. Check out the entire process at the Necro Nom-nom-nomicon.