From the recent ones, there is http://www.imcdb.org/movie_106244-Alien-Intruder.html (a DVD that my father bought for 2 or 3 €)

The movie must be really bad to be considered as "bad" by myself (if I except the movies of genres that I do not like, of course).
For example I found that "MrDeeds" was acceptable (even funny, if I remember well).