Here are some approaches to text alteration that inspired the project:
Nets by Jen Bervin, treating Shakespeare's sonnets
A Little White Shadow by Mary Ruefle: two pages at the Poetry Foundation; a review by Douglas Luman at the Found Poetry Review with some images of pages; and some other page views at the publisher, Wave Books
Austin Kleon's newspaper blackout poems
A Humument by Tom Phillips
Erasing Infinite by Jenni B. Baker
Radi Os by Ronald Johnson, discussed in this Denver Quarterly essay by Erik Anderson