Moroccan Jews have a custom of passing the Matzah over everyone’s head to symbolize the angel of death that passed over the Jewish houses. 

Once I had seder with a Yeminite family, and they had spray bottles of water on the table. They would spray the matzah with the water to make it softer, so they could wrap it around the charoset. 

haggadah Section: Motzi-Matzah
Source: Rabbi Zoë Klein, Temple Isaiah