^^i have a handlebar mount that fits on the end of my pole...
at the top it fits fine and at the bottom, near the basket the pole is too thin so i wrapped ducttape around it and now it works fine + white ducttape on white poles doesn't even stand out ... :)
^^this is the easiest way if you mainly use it while skiing and don't want to limit your own skiing by hauling an extra pole....
however if your main concern is filming others, filming non ski activities or filming alot from a pole, you can get a retractable shower curtain rod or retractable broomstick ; then you can hammer one end flat , and put a flat mounting plate + screw on it to attach the camera....
^^or also use the handlebar mount; great thing about the handlebar mount is that it comes with a triple jointed arm so you can aim the camera in any direction and position you could ever imagine....