Does "Paraphernalia" have a negative connotation?
Paraphernalia has a slight negative connotation in some circles because of its association with criminal possession of drug paraphernalia. Otherwise, it's a good, whimsical word. I personally wouldn't worry about it, but if you have concerns, consider potpourri instead, especially if you're posting about trivia or other diverse topics.
In the UK the word 'paraphernalia' has rather strong negative connotations as it is rarely used in connection with anything not relating to drugs. It can also be used in a humorous way, but I would avoid it.