So, using the Terminal I created an executable file like this:
echo 'ssh myusername@server.com' > click_meThen, from the Finder, get info on the file 'click_me' and set the default application to Terminal. Double-click and voila!
chmod 755 click_me
Even better: put the 'click_me' file in your startup applications, and your prompt will be ready and waiting at login.

