I have never sent postcards, but I always send letters to my daughter from a couple of different characters (I always included the one that she is stuck on at that time and any that we are planning on dining with) The letters are very easy, just get some clip art of that character and put it into word and type your message. My daughter is old enough (8) to notice the post mark but so far she hasn't. I think she is just excited to get the letter and she just rips it right open. Just another suggestion to the postcards.