I'll show the process I used for making a Harry Potter Style Wand. Here are affiliate links to some of the items used in this vide.
Sculpting Epoxy https://amzn.to/2SDRZpB
Brown Acrylic Paint https://amzn.to/3eym56t
Yellow Acrylic Paint https://amzn.to/3hhMl6H
Black Acrylic Paint https://amzn.to/33srF3N
Ryobi 18v Drill https://amzn.to/3vQ2d4s
Oscillating Spindle Sander https://amzn.to/3nXGrZS
Deft Spray Lacquer https://amzn.to/33qzuXV