I know those things aren't cheap...
Back in 1993 I worked for a mortgage company in Tustin, CA. They had bought two huge inflatable Santa Claus faces. Well, the Santa Ana winds kicked up, and they were able to make that Santa face move around so much, it came free and sailed away to parts unknown.
I worked in accounts payable, and I saw they cost about $500.00 each.
Good luck. Check out
This Website. Maybe they can help...
