Although the tinsel is a distinctive element in the holidays, due to the computational difficulty of the simulation does not appear too often in the wallpapers that I leave on the blog.
It is necessary to simulate many thousands of tiny hairs that reflect light between them in a dance almost infinite rays to get a more or less acceptable appearance.

In the following wallpaper, after modeling in Blender tinsel, We added a couple of fields and a particle system generating a shower of stars to complete the stage.