Yes. I saw one (prototype) at the Portsmouth festival of cheese last month. Looked pretty nice. Couple downsides are that you have to 1. schedule your time with Dale at least a week in advance so he can get to your locale, and 2. Sometimes Dale forgets to take off his belt buckle, watch, bootspurs etc...(things that scratch the wing when he is mounted on it).
On second thought, the Mopar bungie cords (they have 2 racing stripes) that are sold at P-bot.com work as good, dont scratch and can be used when yer feelin' spontaneous.