These ghostly shapes are the tarp/canvas covers of the Covered Wagon Ferris Wheel at Trail Dust Town. I don't know if they are now covered for the winter season or if I caught them before being readied for the regular evening crowd.
I'm a transplanted New Yorker who loves the Tucson climate. On New Year's Day I have a bit of fun calling my (snowbound) east coast friends to announce that I'm drinking coffee while sitting on my patio. (: