I did these quite some time ago, but I thought I'd post about it finally. I did these for a Pampered Chef party I had and I was suprised they worked. I know that sounds funny, but some things on pinterest I just never know if they'll work or not. So..
This is the original picture I saw on pinterest:
Cut an orange in half.
I didn't have a juicer so I just scooped them out with a spoon.
From there mix up your jello and pour into the oranges, let it set in the fridge..
Once they're set, take them out and cut into slices. Make sure you have sharper knife or it may get difficult to cut.
Yum! Simple, easy, and quick!