This could be my new hobby LOL. I don’t have any fabric paints yet so I tried it out w/ my acrylic paints.. it works just stays stiff.. if you do it with fabric paint it stays nice and soft like fabric so I have some of that on the way.
Anyway, this couldn’t be easier! print out a graphic, cut it out w/ an exacto knife, iron it onto the shirt (freezer paper shiny side down) , paint, let dry, peel off paper.. SOOO easy! here’s a tutorial 
http://madebypetchy.blogspot.com/2008/05/tutorial-freezer-paper-stencilling.html
And, two of last night’s creations.. really simple stuff since it was my first go at it 
Me a shirt I got from Walmart for cheap.. and added the tree
And, Brianna a shirt she already had with cinderella and prince charming added
and, here’s a truly bad picture of the other 2 kiddo’s shirts
