I am a shiny ribbon used to decorate a winter tree. My first four letters are metal food containers, and my last two letters spell out a short name for Santa's helper. What am I?

I can send winter shivers down your spine, but people also tell you to do me whenever you need to calm down and relax. What cold word am I?

In damp French forests, trained pigs dig through soil to hunt my rare mushroom namesake, but inside a heart-shaped Valentine box, I am a melt-in-your-mouth chocolate rolled in cocoa powder. What am I?

I am a massive body of water that loves to crash parties on the shore, yet I always wave back when I see you. What am I?

I shave every single day, yet my beard remains exactly the same length. How is this possible?

What kind of coat is completely impossible to put on when the weather turns cold?

What is completely yours, but everyone else uses it much more than you do?