Or it's a race car, or a hip-hop dude spinning music.
Or it's a fat bumble-bee, or a flower
or an army guy, or a critter.
Here's the book, and Charlene with her "not a CD" flower.
This lesson was begun when I was out recuperating, and I thought it would be fun and easy for the sub. She read the book in grades K, 1, and 2. Students in K & 1 were given a piece of paper with a square or rectangle of cardboard glued on, and their challenge was to make it "not a box".
The 2nd graders got paper w/old CD's hot-glued on them, and had a similar challenge to make it "not a CD". There were so many good ideas - butterflies, and grandfather clocks and so much more.