I know there’s already a couple threads about this but not an official DIY writeup, thought i’d contribute. this is a pretty simple DIY that can make your engine bay look 100 times cleaner.
Materials:

VHT or Krylon Wrinkle paint (I used VHT red wrinkle)

Paint stripper (can be bought from Lowe’s, Home Depot, anywhere)

Paint thinner

Sandpaper- I [...]