On the left is the slalom
and on the right, bobsled. Interestingly, there was no bobsleigh event in 1960 as the officials decided that it would not be cost effective to build a venue for the nine countries sending teams, but Togo still issued a stamp featuring a four man bobsleigh! I know the style has changed much over the decades, but this looks more like a toboggan to me. I like the stylized drawing that engraver Jacques Combet chose for these stamps.
For the Sochi games, there is this rather bland grey on grey series from 2012
that includes a snowboarder and alpine skier. Others in the set include skeleton, luge and speed skating. Snowboarding was only introduced in the 1998 games in Nagano, but alpine skiing has been included since 1936 in Garmisch-Partenkirchen.
I know this was last week's theme for Sunday Stamps, but as I accidentally slept through the weekend in a flu-ish stupor and forgot to post...