What's the best way to mount an external harddrive to the back of the LG UltraFine 5K Display?

We are used to the awesome Apple Thunderbolt displays where it has a special bracket for mounting hard drives to the back of the display, but I can't find anything suitable for the new LG displays.
Any suggestions?

LG UltraFine 5K Display

LG UltraFine 5K Display

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