Hi there!
Hand and foot prints are the way to go!
Handprints can be used to make a tree ( either handprints or cut out hand shapes) can even make the star at the top with them.
wreath- cut middle out of paper plate. the hand prints go around the circle, the red thunbprints make the berries in the wreath
feet
as said below- reindeer with hand antlers
snowmen - foot print in upside down and the heel is the head ( i went to a carpet store for a free carpet sqaure sample. i made 2 of these "snowmen" on it. added white dots all over to look like snowfall. then wrote "let it snow" across the top in paint. super cute!
angel - like the reindeer the foot os the body (heel is the head) and hands are the wings
also- i gave my little one a tp roll to paint and it became a beautiful "candle" i made a small handprint wreath from green cut out hands, stood the tp roll (all painted and rolled in glitter) in the middle and used a yellow cut out hand for the flame.....the grandmas LOVED it
also, give him/her plain brown paper and he/she can make your wrapping paper either with sponges cut into shapes or finges! yay for messy!!!
good luck and have fun!