From Not Martha:
Last year I had a lot of fun making the creepy crawly cakes so I decided to try a few again this year. This time I pulled out my Betty Crocker mini bake and fill pans and bought a box of chocolate cake mix and some Pocky. I made whipped cream (vanilla pudding would work too) and raspberry coulis (I left the seeds in) for spider guts. I also made some cupcakes to fill, tested one using a bakery bought cupcake and did a frosting variation, the Pocky legs can take an awfully long time. Pocky leg instruction can be found mid-page here.