Melt the chocolate in a food-grade plastic container in the microwave. Dip one end of each cookie into the melted chocolate. Or use a spoon to spread the chocolate on the wafer cookie.
Place each of the cookies down on a cookie sheet that is lined with a piece of parchment paper. Decorate the wafer cookie by shaking Valentine Day themed sprinkles over and on top of the melted and soft chocolate.
Repeat until all of the cookies have been dipped in chocolate and covered in sprinkles. Let the chocolate harden and store in an airtight container or make Valentine's Day Treat Bags like I have done.