OK. so i have some to add (taken from a bunch of diff. People and places, not all to i know a mekor to). Around the Year: Rosh Hashana – My French grandparents eat bananas, because “bon-a-nei” means good year in french. Kedem grapjuice “chadesh yameinu kekedem. square pasta in soup called pletzlech = our enemies should “tziplatst verin” (burst). round challos and honey until simchas torah.
succos – some chassidim sit down for a sec. in middle of kiddush by leyshev basuccah to make it literal. eating both meals shmini a. in the succah.
chanukah – girls light candels until they are married – and we’re not lubavitch.
pesach – not to use tap water all pesach, only bottled and put away before pesach. melt down the sugar to see- through liquid. schamaltz.
shavous- eating milky meal both days.
stam stuff – never say yigdal (nusach ari hakadosh), stand up for elokei neshama, no ldovid hshem in elul. say tehillim every day of elul according to spacific pattern. standing for lecha dodi, not saying “tzeischem leshalom” in zmiros (bobov). saying every passuk of havdala 3X (viznitz). eating sweet carrots and liver friday night. eating fish with hands. standing for kiddush at night and sitting by day. no dessert shabbos day. blessing the children friday night. vimpel. putting newborn in a drawr for first 3 mos. (skvere) . boots on shabbos (skvere). not going to the kosel (satmar). not using electricity on shabbos in israel (brisk).