very nice P! -we did something like this a while back, I made a stencil on the plotter - just a thin plastic shape, more or less. Set it on the shirt and sprayed a bleach mixture on the shirts, we also use a plastic fencing from Home Depot -that looked badass- I bought one of those self pumping sparyers made for cooking. it mists more than sprays....really cool effect
did you spray first or print first?