As already said, the Prius is not flat towable. Not sure about the Honda hybrid.
Ford's hybrids are flat towable, though, and a good bit easier to flat tow than many newer vehicles. No need to disconnect battery (like you must do with Ford Focus or Fiesta), no need to run engine 5 minutes after every few hours of towing like many require. No need to pull any fuses, either. Just put it in neutral and go, basically. Can tow all day, all you want, up to 70 mph. Just need to add a charge line, to keep battery charged up, and you're good.
If you like hybrids and need to flat tow, look at a Ford Cmax or Fusion hybrid. Hybrids make a great vehicle to have with you when RVing, as it allows you to get around campgrounds very quietly on electric power (and 'cleanly' - no exhaust). Not to mention the incredible mileage it gets when driving it. Makes up some for all the gas you burn in the MH, hahaha. :)