If you give free speeches, record your speech (you can use a digital recorder from your PDA or cell phone). Then offer everyone where you spoke a copy of the speech for a price. If you spoke well, they will be lining up to get your MP3 file or CD.
To create the CD. Transfer your speech to a digital editor (e.g., Gargageband if you have a Mac). Edit your speech as needed. Transfer your file to iTunes (or some other digital processing media). Create an MP3 file or burn the digital speech to a CD.
And you've got some money from that free speech!