It's simple: $5 gets you a short, one-line, 10 word or 5-10 second message recorded using the melody and semi-synthesized sound of your choice!
I'll even come up with the melody myself at no extra cost if you don't already have one in mind.
You can choose pretty much any sound or musical instrument in the world to sing your message, but here are a few examples to inspire you:
Guitar (think Peter Frampton's guitar talkbox or some of the old Sonovox jingles)
Analog synthesizer (think Daft Punk, "California Love", or Imogen Heap's "Hide and Seek")
Brass, Woodwind, or other band/orchestral instruments
Holophonor (this one might take me a while)
Literally any sound or instrument in the known universe
For extra cha-ching, I can also develop your message into a short jingle, a full song, or maybe an entire audiobook. The sky is the limit, so if you want something not listed, just contact me and we'll see what we can come up with.