Thanks for all your answers. Just yesterday I was looking at it and thought, I should just cut off the printing on the selvedge and wash that to see if it washes out. I wasn't sure if I wanted to use embroidery floss or perle cotton but the 12 wt sounds like a good idea too. I initially wanted it to be red but have resigned myself to blue if it doesn't wash out. It's a panel I bought while on vacation a few years ago and don't remember where. It has 15 squares of a variety of repro designs plus a border on each end. Thought about sacrificing on of the borders too since I'm not sure I will use them. You've all been most helpful.