Tempera or poster paint
Precut sponges in various shapes, or cut your own from regular sponges
If cutting your own sponges, pick a simple shape such as a star, holly leaf, berry, etc. and cut a regular kitchen sponge to shape.
Pour paint onto saucer or other flat item.
Spread butcher paper out on flat surface.
Dip sponge in paint, making sure to cover entire surface and sponge off excess.
Stamp sponge 2 to 4 times over surface of paper.
Reapply paint and repeat.
You can sprinkle glitter over the wet painted paper for extra pizzazz.