Darrell Calton of the Illiad Media Group and Ian Townend of CreativeEye Media (both located in the Boise, Idaho area) teamed up to produce a series of jingles in several formats, which they're making available to any station that would like to use them free of charge, either for station imaging, advertiser participation, or both.
Here's a video they produced for the series.
Go here to obtain the jingles.