This post will evolve over time, as I collect photos of recycling containers. There are beautiful ones that are completely dysfunctional, ugly ones that serve the purpose, and all manner inbetween.
Here's one in the latter category, showing off once again the limitless versatility of cardboard in its service to humanity. Have a wide-mouthed trash can that you want to convert so people will only throw bottles and cans in it? Cardboard and felt pen to the rescue.
The second photo shows another, more weather resistant way to convert a trash can to a recycling container. Simply cut a hole in a plastic lid and add a small laminated sign. Note that it's paired with a trash can. Otherwise, people would be tempted to throw trash in it, despite the small size of the opening.
As far as I know, there is no manufacturer of this simple recycling retrofit for trash cans. Makers of trash cans do not sell lids separately, much to the disgruntlement of hardware store owners, who find that lids tend to disappear from their shelves, leaving them with lidless trash cans they can't sell.