Try some of these
FROZEN, of course. Now, I know that Otter Pops and such are usually the frozen treat of choice by many a mom, but (don't hate) they don't have any nutrition and I'm on a nutrition/health kick as of late (I hope it lasts a long time). My SIL told me about this one, it's still very kid friendly, but yogurt is much better than sugar/food coloring filled water right? Right. So you get extra mom points for them.
And, of course, there's always the home-made popsicle made with fruit juice option to spice it up a bit.
Looking forward to summer.
Hope your day is great!