Maid of honour help!

So, iv recently been made maid of honour for my SO sister, I'm her 3rd! The other two where nothing short of awful to her and let her down. I planned all the hen party even when she had a different maid of honour because she couldn't be bothered doing it. Anyway, the wedding is this Saturday. I know my duties in the ceremony but I want to get her a little gift. I don't have much money so does anyone have any ideas of what I can get for her? 💜