Thread desired beads onto both the ends of the ribbon. You may need to use a pin or needle to help pull the ribbon through the holes. They are usually quite small.
Tie a knot at the two ends of the ribbon and cute the excess. You may need to tie two knots if the beads you are using have large openings. This is a fairly permanent way to make this handle. The only way to remove it is to cute the ribbon.
An alternate option for a Cell Phone Handle that isn't permanent.
Cut ribbon about 12 inches long.
Fold the ribbon in half and thread the beads onto the two cut ends of the ribbon. Tie a knot at the end of the cute ends.
Thread the looped end of the ribbon through the holes on the cell phone keeping both ends of the ribbon accessible. You may need to use a pin or needle to help pull the ribbon trhough the holes.
Put beads and knot through the loop of the ribbon and pull tight. You may need to tie two knots if the beads you are using have large openings. This can be easily removed if you would like to change the ribbon and beads frequently.