Here is what I did.
FolkArt ® craft paint (one primary color and one accent color)
Using your ruler to space out the tape, lay the next lines of tape. Cut the edges. Repeat until the board is covered.
Paint one square with your accent color. Paint the rest of the board with the primary color.
Remove the tape (the paint doesn’t have to be dry for this).
This project was so easy, the taping was kind of therapeutic for me (is that weird?), and the final result is awesome! The blue and orange one went to my bro’s (now darling, obvi) guest room and a gold + navy one went in my pretty big-girl office:
Aren’t they fun? Happy wall jazzing!