This banner pattern would make for a nice pirate flag ... A taco is just one example, but the good news is that players can at least slap a taco on their banner or shield if they'd like.

Alternatively, you can use the crafting table and arrange dyes around your banner until you find the pattern that's right for you. There are a huge number of Minecraft banner patterns out there ...

They can come in all different colors (Image via Mojang) It's always good to have extra banners if you're making patterns, so copying them beforehand can be a smart way to extend your resources.