I built the spokes on my crown from zip ties. I made 8 spokes with some embellishments in between using a couple different sizes of zip tie. There are 20 pixels to work with, so 8 spokes is about right for want two stars per spoke plus a light in the middle -- I ended up using 17 stars total.

Use strong, stiff ones for the tall spokes. I also zip tied the spokes together using the smaller embellishments, which really helps with stability.

Make the zip ties as tight as you can around the crown. Use pliers to really pull them taut. Even with all the support I added, my crown drooped a little bit with the weight of the LEDs. I'm planning to add some E6000 glue to reinforce -- but don't do that yet since you may change your layout a bit as you add the lights.

I added a coat of gold spray paint at this stage so the zip ties are totally covered.

Starting on one edge, use hot glue to secure the stars in place on the zip ties. I put the wires down the back of the zip ties to hide them as much as possible. Place the lights carefully, folding the wires down behind the stars. 

I placed a star on the tip of each spoke, and one on each of the smaller embellishments. The length of the wire will determine where you can place them. Take your time and make it look as neat as possible. I also found it helpful to pull the strand through the embellishments and wrap it around to take up any extra slack.

Once all the lights are on, cut off any additional pixels that didn't get used. My crown ended up with 17 pixels total so I have 3 left over.

I wrapped some gaffer's tape around the wires and the microcontroller, leaving the tiny switch and the battery port accessible. I taped the controller to the side of the headband as unobtrusively as possible. 

I left my battery dangling because I like to be able to change it easily. However, this project has onboard battery charging so another option would be to secure and hide the battery and just keep that USB port accessible for charging. This is a neater / tidier solution but limits the glow time, since you need to stop and recharge. 

For all-night wear, get a couple of batteries so you can swap them out easily.

I finished up by putting masking tape on all the stars and spray painting the whole assembly gold. This worked really well and gave the crown a "finished" look -- the wires wrapping around now look like fancy wire-wrap jewelry instead of electronics. I may use this technique again!