I love the palindromes story. My dd loves spelling particularly backwards spelling. We started playing the "spelling game" when she was 5/6. Instead of talking we spell out conversation. Full sentences at a time. She has since moved on to saying and spelling things backwards. Each night she begs to go through the alphabet. I say a word that starts with z backwards and then she says it forwards and spells it and we go through the entire alphabet like that. Each of us taking turns with letters. Typically she wants a theme...animals or food etc..