Originally a family tradition of Seinfeld writer Dan O'Keefe, this secular non-commercial winter holiday alternative became the focus of an episode The Strike, which aired in 1997.
Since then its observations, from a Festivus dinner, a plain aluminium Festivus pole, the Airing Of Grievances, the expression of Feats Of Strength and the labelling of Festivus miracles.
It's tagged with the phrase "Festivus for the rest of us."
Since then it has grown in stature, as both parody, atheist or non-commercial alternative to Christmas and has been targeted by those who see it as part of a War Against Christmas.
Well, it looks like the non-commercial aspect may be about to be challenged. Warner Bros has filed paperwork to register both "Festivus" and "Festivus For The Rest Of Us" for,
Printed matter and paper goods, namely, books featuring characters from animated, action adventure, comedy and/or drama features, comic books, children's books, magazines featuring characters from animated, action adventure, comedy and/or drama features, coloring books, children's activity books; stationery, writing paper, envelopes, notebooks, diaries, note cards, greeting cards, trading cards; lithographs; pens, pencils, cases therefor, erasers, crayons, markers, colored pencils, painting sets for children, chalk and chalkboards; decals, heat transfers; posters; mounted and/or unmounted photographs; book covers, book marks, calendars, gift wrapping paper; paper party favors and paper party decorations–namely, paper napkins, paper place mats, crepe paper, printed invitations, paper table cloths, paper cake decorations; printed transfers for embroidery or fabric appliqués; printed patterns for costumes, pajamas, sweatshirts and t-shirts.
Hope they don't get to sue Dan O'Keefe's family….