Wash and dry your clear glass mug. 

Place your mug, upside down, onto a piece of cardboard and trace it with a pencil. Cut out the cardboard circle and set it aside for later.

Put brown paint into the clear glass mug. If your paint is thin enough (mine was not) swirl the mug around to evenly coat the inside of the mug. Add additional paint as needed. Let dry completely.

Fold the ends of a white and red pipe cleaner together to keep them in one place.

Then twist the two pipe cleaners together to create a candy cane. If you end up with two even pieces when finished twisting, fold the ends together to secure. Otherwise, trim the long piece even with the shorter one and fold the pieces together to secure. Bend the tip to resemble a candy cane. Set aside.

Paint the cardboard circle you made with the top of the cup with brown paint. Let dry. Trim your painted circle with scissors. You want it to be about 1/8″ smaller all the way around.

Place your circle inside the mug. It should sit just below the line of paint. Trim and adjust if necessary.

Use the tip of a pen to create a hole in your cardboard as shown. Slide the candy cane through the cardboard.

Bend the bottom portion about 1″ to prevent someone from pulling it out of the cardboard.

Set the cardboard into the mug. Position your candy cane as desired.

Use hot glue to add white pom poms to look like marshmallows and tie a string on the handle to hang.