This droplet will add whatever you want onto the end of every file you drop on it. It will also change the filenames of files in folders. It will not however change the names of the folders. A beep means that a file name would be longer than 31 characters if changed. In that case, the name is not changed. Enjoy!
Notes:
- This script uses Jon's Commands osax.
- This script will die if it tries to rename a file to a name that is already in use.