Chaturbate have now updated their rules to state which toys are allowed to be used while on cam. (Updates in Bold)

Overly large sex toys or animal-shaped sex toys may not be used on camera.

Objects may not be used as sex toys unless they are normally marketed and sold for that purpose. Contact support for authorization and provide a detailed proposal to incorporate any type of mechanical device, tool, “sex machine” or other equipment into your performance (whether controlled by you or controlled remotely by users of the Site).

We may require you to sign a waiver and release of liability in order to use certain devices on the Site, and any authorization or permission we give to you may be revoked by us at any time and for any reason, without notice, in our sole and absolute discretion.

Sex toys that are shaped like animal sex organs are NOT allowed on cam (even if they are dragon/fantasy animal toys).

“Fox tail butt plugs” and other “tail butt plugs” are not in violation of our rules and are allowed.

You can read this on the Support page