I haven't done them in class yet...just with my own children, as well as some
pine wreaths at xmas. One tip...the sap is a bother. Have found that
dishwashing det'g (automatic..the crystals) works well to scrub the sticky
stuff off of hands. Please feel free to forward any "tidbits" that come your
way re: this. Would love to try it...teach K-6 and have access to MANY
needles in my yard. The long ones, too.