Save the drinking for later. ;-)
There's a guy in the Northern Michigan area who does that regularly to entertain children's programs both indoors and on-slope. He rides unicycles and juggles too. I've never seen him drop the pins as much as this video.
Don't know if "The Jugging Skier" sic is a pro, but he's a pretty damn good juggler and skier, and looks like he's having a lot of fun, and making others smile in the process, so good for him (and all of us)!
I learned to juggle three pins several years ago - nothing fancy, just basic three pin juggling - and I can walk around the yard while I do that, but I can only hope some day I'll be that comfortable on skis to juggle while sliding down a slope.
Actually hope is the wrong approach. Work is more like it. Back to the off-season training! ;-)