Giant Crayons

What happened to the giant crayons?
We have so many colorful plans.
All the crayons are too small.
They won't do at all,
In such tiny hands, they just break.
Giant crayons, you, where do they make?
Jumbo ones will not do.
Halved, are the red, yellow, and blue.
To the craft stores, our boy sends.
Our search never ends.