Sorry, Wendy, but it is not a cup holder! It would be a very big cup. Thanks for commenting, and I think you may have a better idea of what it is than that.
There were plenty of folk who did get it though, and lots of "hands up".
Students and staff at the Cambodiann School of Orthotics and Prosthetics were responsible for building his prosthesis. To find out more about this amazing example of the care provided for animals at Phnom Tamoa Zoo and Wildlife Rescue Centre, check out this link.
Just don't look at the comments below the article and video.