Why not cut some white squares from some of their t-shirts what ever size you wish and let the children draw and color their pictures and then one on each side of the pic. with an outline of their hands. Make a quilt for a charity or their library at school; or a table topper for their mothers. Kids love to do this. Ask me how I know ?- I taught first grade for 21 yrs. I know you are recycling, but use some of their fabric for the borders or sashings. Something else you can do is let them draw and color pictures and get your daughter to laminate their pics. and use them at their desks for placemats, or make placemats for their mothers for valentines day. Or let them cut up scraps to make the placemats, either use fab. or colored construction paper. They could make thir own quilts from construction paper. We did this also. Something else, get some empty fruit cans and wrap and glue yarn to make a pencil holder.