Here's a cool #protip for all you #lifehackers out there: First, If you're getting ready for Halloween and your costume requires you to apply makeup to darken your skin so that you can look more like someone from another culture, you should probably go ahead and stop what you're doing and re-examine your choices. If those choices include paying 30 bucks for a "Victorian nightshirt" left over from the costume site's ill-fated attempt to get people dressing up as Ebeneezer Scrooge on Christmas, or if that purchase was motivated by a promotional video that included sitar music, maybe go ahead and start over from scratch.
In the interest of fairness, I probably should point out that this is the least cartoonishly stereotypical "Arab" costume currently available, but that's just because it doesn't include a scimitar or a "magic lamp" that you're meant to wear as a codpiece so you can invite others to rub it until a genie comes out. The "genie" in this scenario is your sperm, by the way.
Probably best to just avoid the whole thing.