Peel bananas and cut in half. Gently insert a popsicle stick into the center of each banana half.
On a sheet of wax paper, sprinkle the chopped pecans or sprinkles in an even layer.
In a narrow glass, heat half of the chocolate chunks in 15 second increments. Stir after each heating, and continue the process until the chocolate is thinned out and smooth.
Tilt the glass toward you, and carefully roll and twist the banana pop until it is evenly covered in dark chocolate.
Roll lightly in the pecans or sprinkles.
Transfer the dark chocolate banana pop to a dish or pan covered in wax paper. Place in the freezer for 2 - 3 hours until they are frozen solid.