“Sandbox,” Friend, Aug.–Sept. 1981, inside back cover
Sandbox
My sandbox holds a fort
And I’m captain in command,
For I am a sturdy officer
Defending prairie land.
But yesterday, as engineer,
I tunneled through with zest
A lofty peak so trains could reach
New cities in the West.
Tomorrow on the moon I’ll build
A place for me to go.
Then I’ll bring my spaceship in
By special radio.