A fellow employee where I work asked "why don't you get a spinnaker with
the
name of some firm or product on it and get the spinnaker for free"?

In my travels, as well as pictures I have seen on the net etc, many
spinnakers have logos', product names, company names, etc on them.

Since I need a spinnaker, why not. But how would I go about finding a firm,
product, etc who would be willing to pay for the spinnaker.

Any ideas?