Check out this nifty idea: Glass block jello from Our Best Bite.

This little amazing thing apparently is incredibly easy to make:
All you need is, red and green jello, some cherries, little flues with rounded bottoms. Make the red jello in little flutes with cherry in it. Then out of the green jello - cut out the leave shapes and place on little cute dish.Here are some other interesting and cute jello creations from all over the place.



This is actually meat jello, which is delicious (if you are not vegetarian).
Liz Hicock, an artist, makes amazing cityscapes our of jello:

Make sure to visit her site for more amazing and delicious masterpieces.
To close this for now, behold - 3D jello flowers in jello. These are made out of jello, and at home using just a few creative methods:

If you read Russian, you can get the instruction on how to do it here.Apparently this involves colored jello and a syringe, and a method of cutting opening in a made jello and injecting another color inside.