That sounds fun! We have done just a flower before, but a whole box might be nice for our older students. A friend of mine did a Springh weather glyph. If you were a girl add 3 clouds. If you were a boy add 4 clouds. If you have pets color your clouds gray. If your pet is a dog or a cat, draw rain. If you dont have a pet add .... it went something along those lines--- su, rainbow, lightening, flowers budding, birds singging, kites... she teaches weather and it went along with her unit.