Have you ever thought about having an inhouse radio station within your own business. Prices start at less than £1.50 per day if you have an existing PA system. Basically this is your own bespoke radio service within your own business.
This is a well known way to improve employee and or customer satisfaction and or communicate important information (such as health and safety) or market products to customers you have in store. You could even have a radio station in your own home.
Or what about having a one off radio show to mark a special occasion. Prices start at £40 per half hour. Birthday anniversary, wedding proposal!?