I hope you don’t pull the rubber bands out forefully. That’s a major no-no, as you could end up pulling some intestines along with it, which would result in a very sickly and probably eventually dead cat.
As for the taste of rubber bands, the dust covering is not very pleasent at all. As a project, I converted three or four bags of rubber bands into a baseball sized rubber band ball. After I was finished, I imagine my hands had a good layer of nasty dust stuff, and I have the habit of putting my fingers in my mouth or near it. Bitter is about the only word I could use to describe it.
I’ve never heard of rubber bands, but it’s fairly common for some mental patients swallowing large numbers of unusual items, particularly metal things like nails, screws and bottle caps.
About halfway down this page is an account of a woman who had consumed
nearly 1,500:
Rubber bands and twist ties. One of ours seems to have a secret cache of twist ties hidden somewhere to replace the ones we take from her. I swear to God, I don’t know how they survive a week without humans to stop them from eating things that will kill them.