Here's what you'll need:
Gelatine - You can usually find it on the top shelf near the Jello. Get the unflavored variety.
Then you'll need a strongly flavored juice. I chose berry this time but any flavor will do. I've tried apple juice before and it's kind of "blah" since apple juice is mildly flavored. 
Take 1-4 packets of gelatine and sprinkle it over one cup of cold juice. Let it sit for a few minutes. Why 1-4 packets? Well, 1 packet will yield a soft set jello. Still giggly but you have to use a spoon. 4 packets will give you firm, cutable, hold in your hand "jigglers".
Heat 3 cups of juice until almost boiling. It's not a big deal if it actually boils.
Stir the hot juice into the cold juice/gelatine mixture and stir for 5 minutes.
Either leave it in the bowl or pour it into a 9x13 pan. Refrigerate until set (3 hours). Enjoy! My kids love it. It's so much better for them then packaged jello that is just gelatine, sugar, and flavorings. I think we'll try a firm set next time and try cutting out shapes with cookie cutters!
