One game that we do with my 5 yr. old boy for spelling is called ping-pong.
I will say the word then say the first letter, my son will say the next letter. We go back and forth until the word is spelled out.
Another thing is to get them to move around a bit. For instance in doing a math drill for which numbers are odds or evens i will tell him to jump out of his chair and yell "even" if it's even, if it's odd whisper "odd" and stay sitting down.