How about a knuckle sandwitch

Toast

My daughter wanted me to bake something for Halloween. Here we go!

I imagine a few of those (with some chopped tomatoes hanging out of the wrist portion) scattered around your front door would scare the heck out of any little kid.  And some big ones, too!  

Nicely done.

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it even has a wart on it... perfectly scary!

I really like that! I can imagine that black olives, sliced lengthwise, would make great fingernails!