First spray paint your bottle caps white. I would make sure to do this ahead of time, because kids will HATE waiting.
Next, you just need to take your bottle caps and put your face and buttons on! You can choose to add your name and year if you would like, I think it adds to the memory of making them! Let the kids do this. It will be fun to see what they come up with.
Cut your felt into thin strips for your scarf.
Then take a red or other holiday color piece of ribbon and glue the top into a loop! Then Glue your bottle caps onto the ribbon. You can choose to leave a gap in between the caps if you would like! I would HIGHLY recommend leaving a bigger gap in between the first two to leave room for the scarf.
Finally, add the scarf and glue it in the middle to make it look as if it is wrapped around the snowman's neck!
You're all done! This is a very easy craft that the kids will love to do together. Then every year when you pull them out to hang on the tree, you can talk about how much fun you had making them.