Heat oven to 350 degrees.

Place paper baking cup in each of the regular size muffin cups.

Mix cake mix as directed on box, using water, oil, and eggs.

Place in muffin cups and bake per directions on box, approximately 18 minutes.

Remove cupcakes from pan and cool completely.

To make the frosting, crèam butter in a mixer and add marshmallow crème.

Mix in powdered sugar and vanilla and mix until blended about 4 minutes.

Divide frosting into 2 bowls. Add 3 drops of purple food coloring to one bowl and mix. Add 3 drops of green to the other bowl and mix.

Remove paper baking cups from cupcakes. Cut each cupcake in half horizontally.

In each jar, place 1 cake half in the bottom. Add purple frosting to a Ziploc bag or piping bag. Cut off the corner and squeeze frosting over cupcake. Sprinkle with candies or sprinkles.

Repeat layers and end with frosting and sprinkles.

For the webs. Draw or print out spider web on paper. Place a sheet of wax paper over the drawings.

Place candy melts in Ziploc bag or piping bag. Microwave in 30 second intervals until chocolate had melted. Cut off small tip of bag.

Trace the spider web with the chocolate on wax paper and let sit until hardened.