I built this blade plug from objects I had lying around.

I used an inch of the thick blade tube as my base. I had a bunch of parts for an older TRAXXAS gas R/C and built up the end from those gears and other parts. I then used a metalic set of paint markers to add color. Finally, I stole some plastic "rubies" from my wifes scrapbook supplies. I know you can purchase several different colored jewels at Wal Mart for a fairly cheap price. They have an adhesive back, but I used super glue to reinforce them. I would note that the jewels do not light up when the blade is on. I am sure some enterprising individual could get it to work, but I am going to just leave it as is.

Nothing amazing or costly. Just a bit of kit bashing from stuff you find around the house.20180510_154254.jpg20180510_154351.jpg20180510_155352.jpg20180510_155418.jpg