I recently hung these plates for my Mom using the neatest little discs. They are perfect because you don't see those nasty wires on the plates...they simply float on the wall.
Rhoda at Southern Hospitality http://southernhospitalityblog.com/ has a new sponser that sells these dics and is giving free shipping. I paid over 4$ for each disc...I would have saved quite a bit because the price from Rhoda's source is less than half what I paid. So, if there is any plate hanging in your future check out Rhoda's sponser. You will never want to use those ugly wire hangers again!