Definitions of tinsel:

• noun:   a thread with glittering metal foil attached
• noun:   a showy decoration that is basically valueless

  Example: "All the tinsel of self-promotion"

• verb:   impart a cheap brightness to

  Example: "His tinseled image of Hollywood"

• verb:   interweave with tinsel

  Example: "Tinseled velvet"

• verb:   adorn with tinsel

  Example: "Snow flakes tinseled the trees"