Place candy melts in the microwavable bowl or mug.
Microwave for 30 seconds at a time, stirring in between, until it has melted smoothly.
Place marshmallows on the straws and lay them on piece of wax or parchment paper, or a cooling rack over wax or parchment paper.
One at a time dip the marshmallows into the green candy melts coating them completely. Tap the straw gently against the side of the cup to let the excess candy melts drip off.
Add two candy eyes.
Next dip the marshmallows in the cup of sprinkles to create hair.
Set the marshmallows down on the cooling rack or parchment paper and let the candy coating harden.
In a separate cup melt the chocolate chips and pour the melted chocolate in a sandwich bag. Snip off the tip of one corner.
Pipe the chocolate on to the marshmallow creating a mouth and some stitches (optional).
Pipe a drop of chocolate on each side and press a chocolate chip into the chocolate with the flat side facing out. These make Frankenstein's neck bolts.
Let chocolate harden complete and then store in an airtight container until ready to serve.
Let bark cool until set.