Make pretty ones from old popsicle sticks and laundry detergent or softener caps!
Color craft sticks (popsicle sticks!) with green crayons or marker. Cut fun foam into flower and leaf shapes and glue to craft stick on top - try different types of flowers and leaves. Push stick into cap, and weight it with plaster or glue down to a surface. For kid projects, make sure to write the child's name on the bottom of the cap. Make lots of flowers, place in a pot filled with "grass" or in a vase, and you have a lovely bouquet that will never die!