Latex wedge for GPS vehicle mount

Jason0x21 writes “The “Vehicle Mount” for my Garmin GPS comes with double sided sticky tape for affixing to any flat surface, but who has a flat surface in their car anymore? I decided to cast a latex “wedge” to fit the curved surface of my dash to the flat surface of the mount (using two pieces of double sided tape). It works like a charm, and I taught myself how to cast with clay, plaster, and latex in the process.” – Link.