I make my own milk kefir.
Not that it is warm, my kefir grains are on overdrive, and it multiplies like crazy. Since my kids are striking on kefir at the moment (weird. One day they LOVE it, the next day they HATE it.), I have found a way to make it irresistable!
Seriously, kefir popsicles are the best.
All you need is some popsiscle containers (or you can get crafty with small, rinsed out joghurt cups), kefir, and any kind of yummy fruit. I put in some raw honey too, that makes it magic.
Put in containers and freeze.