I added some industrial velcro around the post at the top of the umbrella and also stuck some to my battery. This will hold the battery in place so it doesn't flop around, but makes it easy to pull out for charging.

I placed the four quad strips right at the top center and wound them around every other spoke on the umbrella, and let them dangle off the ends.

Now it's time to decorate. I used E6000 glue to glue a strip of sequin fabric around the perimeter of the umbrella. I used a lot of strips of fabric, ribbons, and spiral-cut organza in the center of my umbrella. 

For the top, I cut a large circle of organza and finished the edge on my serger. I draped it over the top of the umbrella and sewed it to the posts at the ends. I used some FrayCheck to keep it from unraveling around the holes.

I sewed tentacles to the four corners that have dangling lights. I used two strips of fabric and stitched the lights inside, so they're a bit diffused and also protected from the elements.

I added tentacles on the other four umbrella points (the ones without lights) as well. More is more, here. It's great to add different types of fabrics and textures. Ruffles work great.