Press a lollipop stick into the center of each marshmallow
Melt dipping chocolate over a double broiler (do not let water boil)
Dip marshmallows one at a time, allow access chocolate to drip off.
Roll dipped marshmallows in sprinkles and place on a tray covered with wax paper. Or, you can place marshmallows, stick down, in a mug until the chocolate sets. These can also be placed in a freezer for a few minutes.
If you're gifting these, once the chocolate is set, place each pop in a cellophane bag and tie with a ribbon.