Let's conduct a contest for Rio-2016. Hats, graves and voicepack would also be nice. Full package!

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EDIT:
Stuck. Need ideas.

Throwing hammer for snowball,
olympic sports emblems for spray,
cycling, rowing and yachting emblems for clouds,
medals and flowers for flakes,
tartan pattern for landscape,
photos of winning athletes for sky and horizont.

Not sure about clouds and cannot find sports emblems in good quality.