Once the cookies are cooled, melt the chocolates to a microwave-safe bowl, and heat in 20 second intervals, stirring after each one, until melted and smooth. Leave to cool for a few minutes. Pour into a ziplock bag and snip an end.
Starting from the center of the cookie, make 8 legs drawing each chocolate leg out to the cookie edge, thin or thick, whatever you want.
Time to add the spider bodies on top of the legs.
Take your peanut butter balls out of the fridge and get ready to coat them.
Add the chocolate chips to a microwave-safe bowl, and heat in 20 second intervals, stirring after each one, until melted and smooth. Leave to cool for a few minutes.
Dip each peanut butter ball into the melted chocolate, and place each ball into the middle of the cookies, where you put that thumbprint with the legs sticking out. I used a plastic fork and it worked well and do these one a time.
Add eyeballs, sprinkles or whatever you want to make them complete after you dip each one. Don't dip and decorate later.
Let truffles set. You can quick-set them to get the chocolate to harden by placing them in the fridge for a 5-10 minutes.
Enjoy double peanut butter deliciousness!