My 2nd graders are ready to use "La". I was having so much fun with Halloween-ish activities that we're a tad behind. No worries, I love "La".
I created this Mi Sol La Powerpoint to use with my students. I've used sentence strips in the past, but, after using my Do-Re-Mi slides with 3rd grade, I think these will work much better.
I've included some ways I use the Power Points. If you think of more - let me know!