Mountable antenna
This angle adapter is perfect for mounting an antenna on any metal surface. It works with two 1/2" x 1/4" magnets, handy if you don't have a right angle SMA adapter on hand and want to mount an antenna on a car or tin roof.
Magnets:
http://www.amazon.com/Neodymium-Magnets-inch-Disc-N48/dp/B001KUURP2