There are many sites available to make your favorite activities or words into a logo or graphic. It can be really a fun graphic for your kids and families to do for their holiday cards. Let each child give you three words and incorporate all of the grandchildren wishes or sayings.
Recently I wanted to emphasize the number of software photo related classes we held last year at the lab. I just typed in the words and they created it in the shape I selected. 
Several of the sites do not work on different browsers proving more work than I wanted to spend. www.wordclouds.com This site worked and had the most features. Free of course.
In the snapshot of the work space, “flatness” means width. I found that 20% made the tree a little wider and more to the shape I had in mind. Try it.
Follow the order on the menu task bar. 
Cheers and Happy Holidays from AGE Computer Lab.
AGE Computer Lab 