Gift to friend for Yom Kippur (as a non-Jewish)

Hi guys! I’m a non-Jewish person that has a close Jewish friend who in the past few years has re-claimed their beliefs after living in a household that rejected them. Holidays mean a lot to them, especially after the passing of their Jewish parent, and since right now they don’t have many Jewish friends to celebrate them with (we live in a part of Germany where there is a big problem with both 1) extremely conservative Jewish communities and 2) antisemitism, so there are no Jewish spaces in which they are comfortable celebrating), our friends and I wanted to celebrate with them. I’ve given them a few small gifts for Rosh Hashanah (local honey being one of them), but unfortunately I’m not extremely familiar with Jewish holidays whatsoever… what gifts (best if homemade) would you guys recommend giving them for Yom Kippur? Since I know there is traditional candle burning I thought of a nice candle that I could decorate and also maybe a challah (something I’ve made before). Any other recommendations, or even ideas for future holidays? Thank you all so much!