Writing confessions with ashes (ashes mixed in glue or paint).
Worshippers approach the Communion Table to paint with ashes. Dip in paint then dip into ashes.
Not sure which member originally posted these photos! ...but it's a great idea for worship.
ALSO
"Sackcloth and Ashes"
Write confessions on sackcloth with ashes (as in "sackcloth and ashes"). Read 23 verses about "sackcloth and ashes."
Paint pens, marker or ashes mixed into glue or acrylic paint and brushed on. Let the students dip their brushes into the paint then into the ashes.
Hanging or nailing burlap strips to a wooden cross on Ash Wednesday.