While the wooden barn quilt block certainly has merit, it lacks the warmth of a traditional quilt. Given the previously mentioned concerns of theft and lack of cleanliness, I'd just study the bathrooms in question. Look at the floor & wall tile colors and patterns. No tiles? - what other decorations are already in place, flowers, brass knob cabinets, wooden cut-outs of children, . . . ? Remember, one of the objectives is to make the bathroom look good, so take photos, then study the pictures. It'll come to you.