This project is especially nice for younger children (pre-school and elementary school). You can use the child's hands and fingers dipped in fabric paint to design a 'garden of flowers' on a t-shirt, canvas bag, or a large piece of paper.
Start out by squeezing out enough paint onto the paper plate for a child to dip his/her hand in. Once their hand is covered by paint, have them press it onto whatever you are decorating. Each hand print will be a flower. Kids can leave their finger's tight together, spread them out, or even try experimenting with the side of their hand (the side of a hand feld in a fist can resemble a rose bud). Details can be added to flowers using fabric paint and a paint bruch or fingertips.
When all of the flowers are made, use the fabric paint to write a caption that reads "Teachers Make Small Things Grow" or "Teachers Help Children Grow".