I've had Tracfone for years and I just decided that I wanted a custom ringtone. I can't find what I want on the Tracfone store, and I don't know how to put custom ringtones from my computer onto my phone.
Send a text message to your email address. Then reply to that message with the ringtone as an attachment. It may not work depending on the phone you have. Then your only option will be to buy them off of the tracfone store.