Pic is available from the Conifers thread now - link below. Here is a link that might be useful: http://forums.gardenweb.com/forums/load/conif/msg0816114416549.html?7

Glue is fine but if you can find the studs, mark them on the molding and drill a small pilot hole where you want the nails to be. This will avoid splitting the trim. We've had to do the same thing with our trim issues, like around the windows in our upstairs bathroom. We had very little sash to nail to so we drilled pilot holes and then nailed the trim so we wouldn't split the exposed sash or the trim with the nail being at the edge. We wanted a relief to give the windows period character, with no damage. I'm posting a link to our project. You will have to scroll through the photos because I'm being lazy. Good luck! It's very doable. Here is a link that might be useful: Bathroom photos

Any wind could blow them unless secured somehow. Depending on whether or not you will accept holes in your walls, here are a couple thoughts: A) Insert plastic wall anchors then cup hooks for the license plates B) Staple gun a strip of velcro onto the wall. Affix an attachment piece onto the backside of each plate. Easy relocation and minimal wall repairs whenever you change your mind.

Here’s another idea. The strap is a cable tie. I don’t know what the piece attached to the wall is called- I hired someone to secure this glass bookcase to the wall. No little ones live in my house now, but the bookcase was a little wobbly due to an uneven floor and it didn’t seem safe unsecured.