I've never bought a jelly toy. I've never encountered the substance knowingly.
I prefer to keep it that way.
Because of the toy's porosity, I would likely dispose of it within a very short period of time if using it anally without a condom. I mean, you can't really
clean them. It grosses me out, for lack of a better phrase.
If you're covering them, I think they should be good for a while longer... From what I've heard, though, a jelly toy will likely melt or phase into an alternate state of matter if you look at it the wrong way.