Got this from the Blanco Vista Elementary PE department. Design your own design with tape, have kids use colored chalk, when finished peel the tape, and you have a masterpiece!
This was eye-opening! If there are adults with no internal monologue, there are children without it. I was never aware of this condition, but I remember children who fit some of the patterns/symptoms mentioned here.
Check out this video, and then check out this second video about people who have no mind's eye and cannot "inner visualize".