Customize your guild bank icons with this handy script
There's a better way to assign icons to your guild bank tabs. With a simple script command, you can assign any icon that's in the game to any one of your tabs. The first step is to identify the icon you want to use. Wowhead is your best bet here, as it's got the icon files for every spell, item, and achievement in the game. Find the ability that shares the icon you want to use, and then click on the icon image to grab the specific icon identification string, like "spell_nature_bloodlust" for Bloodlust.
Once you've found your icon string, it's time to apply it to your guild bank tab. Here's the command you'll use:
/script SetGuildBankTabInfo(1,"Materials","spell_nature_bloodlust")
To run the script, just copy and paste it into your chat window and hit enter. That's it! You can also type it in manually if you prefer. Remember that you'll need the appropriate guild permissions to edit your guild bank tab info, so you might have to have an officer run the script for you. Once completed, your guild bank will have awesome new icons for you and your guild to enjoy.