The Shabbat after Pesach it is a custom to bake challah with your house key inside of it as a segulah for parnassah.
My friend came up with something better. Bake a little "mentshie" in your challah as a segulah to find your husband. ;-)
Nice dvar torah on shlissel challah here and post by asimplejew here.
Needless to say, I am still awake right now because I baked challah with my key in it.