Get your cookie sheet ready by adding a layer or parchment paper.
Add your meltable chocolate to a microwave safe bowl and microwave on 30 second increments. It took about 1 minute to melt my chocolate but do not do 1 minute all at once or you will burn the edges.
Once melty, give it a stir to make sure everything is melted correctly.
Wait about 2-3 minutes and then start dipping your pretzels. Use a fork to help get the pretzels covered and remove them from the bowl or you will get your fingers full of chocolate.
Put down a row or two or pretzels on a cookie sheet covered with parchment paper and then add your candy eyes. If you have a lot of chocolate in the ghost "mouth" you can use a toothpick to remove some of it.
Wait about 10-20 minutes for the chocolate to harden.
Carefully break off any stringy pieces that make the ghost look strange.