I saw a card like this in a book and had to try it. The snowflake is from the season cart from Creative Memories. the card is 5x5 when folded.
Here is the card folded up.
Here it is when you open it
and here it wil all the way open
I cut mine 10x5 then folded each side in 2.5 inches so each side meets in the middle
Then I glued the squares on the sides like shown and up the snowflake in the middle.
I hope you like it and enjoy!