I think it's great that you're trying to come up with a healthy treat.
I'm afraid it's been either cupcakes or doughnuts in DD's class so far this year - except on DDs B-Day.
DD absolutely loves cucumbers and asked if we could bring those for her treat. I just didn't see a class full of 2nd graders being too excited about that, and I didn't want DDs feelings hurt when they gave her a hard time over her choice of birthday treat. So I'm embarrassed to say I buckled to pressure and we did NOT go with the cucumbers.
We did yogurt and a fruit tray and DD still took some flack over that choice.
BTW, we took cucumbers in when DD was star student and she was supposed to share her favorite things.
Very few kids even took any and one little guy who said he had never had them before but wanted to try one ended up gagging and making a mad dash for the bathroom.
Kind of sad.
Guess it's a good thing we didn't bring them for a birthday treat after all.