By Bonnie Stiernberg With all of the drama of the doping scandal surrounding 15-year-old Russian figure skater Kamila Valieva, all eyes are on the Olympic ice. And for those who don’t follow the sport regularly, some of its stranger traditions might raise some eyebrows. What’s the deal, for example, with the hundreds of stuffed animals that rain down onto the rink after each skater’s performance? It turns out there’s actually a pretty practical explanation for why skating fans hurl teddy bears and other plush toys at competitors: They’re soft enough to toss onto the ice without damaging it and…