Like most candies, this is loaded with sugar, fat and salt, so it may not be for you.   But if you are going to offer a treat anyway, or the kids are agitating to make their own,  here's a recipe from the Recipe Du Jour newsletter that has some nutrition as well and is fun to make. 

Chocolate Spiders

1 1/2 cups semisweet chocolate morsels
1 can (5oz) chow-mein noodles
1 cup salted peanuts
1 large pkg. colored round candies, such as M & M's

Place chocolate morsels in top of double boiler; bring water to a boil.   Reduce heat to low; cook until chocolate melts. (* Note)

Add noodles and peanuts,  stirring well.  Drop chocolate mixture by teaspoonfuls onto greased baking sheets.

Press in two candies for spider eyes.

Refrigerate 8 hours or overnight.  Keep chilled until ready to serve. 

Yield: about 3 dozen.

Note:   this can be done in the microwave on lowest possible setting, a few seconds at a time, checking frequently.