Does any have a repository of improperly formatted RSS feeds

I just implemented a version of Peter Bromberg's RSS feed parser. Now, I need samples of improperly formatted RSS feeds from all versions (0.91, 0.92, 1.0, 2.0) so I can test the code in real-开发者_运维百科word conditions. Does anyone know any or a site with many improperly formatted RSS feeds or know a repository of improperly-formatted RSS feeds?

After some information-gathering; the best way to do this is to do a search with your favorite search engine and try to find some site that support multiple RSS-types. Putting double quotes around the rss types (e.g. "rss 0.92") helps a lot.