We have a Princess tiarra and wand which was part of a vintage costume at one point.  It is in fair to poor condition but has some charm even so.  The wand measures about 13" in L with the star being about 3" across the center.  The bottom of the wand needs a spot of glue, the star on top - 4 of the 5 corners are a bit tattered.  The tiarra is about 7 1/2" across from point to point on the bottom.  The sequins are attached to a plastic headband and an elastic which still has stretch to it.  Overall the piece shows some wear as you can see in the photo's.

Costume Princess Tiarra and wand Vintage