Ok, let's straighten up a bit of this lunacy.
Red eye's are not poisonous.
Dart frogs are only poisonous in the wild due to their diet.
It is fine to hold red eyes, but it should generally be done on a limited basis and you should have clean hands as they do absorb through their skin. They are easy to keep and neat animals, but are strictly nocternal so they are not much of a show, where as darts are active durring the day time. Darts are much smaller than red eyes. I don't really have any "size scale" pictures handy, but here are two to give you an idea. This is my adult female.