Found this on eBay! Pretty cool.
You can put your own loose powders/mineral make up in.
It’s quite hard to get good empty palettes and things in the UK, so this was a nice goody for £4.50 including shipping. I can put any of my powders in here, even a highlighter or bronzer, or mineral make up for a quick top up! The bristles seem fine – not brilliant but not bad.
I got mine from eBay seller cheshirekitten33, but there are plenty to choose from!