It is possible to provide your kids with writing, craft and civic responsibility with this NON-political pre-addressed card to The President of the United States. What Fun!
The card itself prints on 8-1/2 x 11 paper and quarter folds to fit a standard A2 envelope. Even better the second page of your download is an outline of an A2 envelope pre-addressed to Mr. President. Kids just cut and paste the A2 size envelope themselves, maybe even decorating it.
When folded the 8-1/2 x 11 provides 2 full panels of writing space for the kids with a simple "Thank You" aside the American Flag at the bottom. No political or religious conflicts here - just some fun and learning.
When finished I propose the kids take their letter home and share it with their parents, then add a stamp and even mail with parents approval.