These were another favor we used for our twins baptism.
Bags of marshmallows (Depends on how many crosses you want to make)
Take 4 marshmallows and place on a skewer. You will need to cut some skewers smaller and carefully for the crossbars. Place a crossbar thru the second marshmallow and place a marshmallow on each side. Using a brush, or your hand, or a paper towel, put water all over the fronts of the marshmallows. Sprinkle your decorations and tap off excess.
Bag and tie.