Durham Forge produces a lot of stars in the blacksmith shop:

Star Candle Holder
Made from 1/8" x 1/2" flat material (steel), two five point frames have been formed and welded at 90 degrees to each other. 1/8" round steel ring is at top. These may be hung or sat on flat surface. They can hold a tea candle or votive. Different sizes are made depending on your request.

Christmas Star
A Christmas Star is forged from twelve triangles welded together. Different sizes are available - they generally hang from a ring on top.

Flat Star
Sometimes called a Moravian Star, these can be made from 1/8", 3/16", or 3/4" flat plate steel, with hammered texture and a hole in center for mounting optional.