Coloured tissue paper can be used for many things; wrapping paper, petal garlands or add a 3D effect to your kids art work. Make those animals come to life with some colour.
While on the contrary, crepe paper wouldn't work on withy lanterns, though I'm sure someone has tried as this paper is somewhat thicker and has a wrinkley type texture. The best uses for crepe paper are colourful confetti, paper twine as well as making beautiful wrapping paper out of it.