The E-Z Way
Basically I cheat. I use iron on adhesives. I glue my pattern to the back of the iron on. I then cut it out. And iron the pattern on and WIN!!
To begin I need the fabric. I has been recommended to me to use the cheapest satin possible. It unravels the least. I havn't experimented with other fabrics. But cheap satin does totally work. I print out my design, Pearl's star, full size. And I had some Loctitie 300. You could use other glue. I recommend a spray glue.
My fabric is a little wrinkled.
Here is my iron on material. It is EPIC. So useful!!
Once I have ironed on the iron on material. I then glue on my pattern to the paper of the iron on material. You can glue to the paper of the iron on, because you will be removing it.
I then spent about about a half hour getting it positioned right. I measured from the seam points on the neckline. From each point to the top of the star. I kept moving the star until it the two measurements were the same, well within a 1/16 of an inch. But that made sure the star is centered on my chest.
It is machine washable, Just use cold water. And if the tips of the star start to come off, a quick hit from the iron and you can readhere them!!