The Blazon of the Katzenjammer Coat-of-Arms:

Tenné, a pitch Sable surmounted by a royal Cyprian coronet torse-lined Sable and Tenné. Order of the Co-ed a Cappella Garter (Vert bordered Or with grommets Or in the symbols of Mars and Venus, bearing "Princeton Katzenjammers" Or)

What that MEANS (ie. the official parts can be rendered by artists however they like as long as it STILL FITS THAT description. (Translations/explanations of previous word in parenthetical italics)

On the Escutcheon (shield) the background color is Tenné, (orange/tawny), with a pitch (upside down Y... and/or peacenikized version of the Princeton chevron... and cute reference to singing. Also, I COULD have just said "pitched") Sable (black) surmounted by a royal Cyprian coronet* (specific kind of crown with pearls on the outside and that particular pattern of pearls and blossoms and a band with emeralds and rubies (or in this case padparaschah) torse** (braided bicolor band)**-lined Sable and Tenné. Order of the Co-ed a Cappella Garter***  (the circular necklace symbolizing membership in an imaginary knightly order... since it isn't known, I provided its heraldric blazon:)

(Vert (green) bordered Or (gold) with grommets Or in the symbols of Mars and Venus, bearing "Princeton Katzenjammers" Or)

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There you go... now the footnotes...

* CORONET: ok the exact type of crown is the most shifting part of the heraldry (and it's actually not consistent over times and places). I chose this TYPE of crown, but it's variously named as symbolizing a Marquis, an Archduke, and the King of Cyprus... I prefer the latter because of its Aphroditic association... and they rarely have material in a color other than red... though matching with the garter makes sense, especially in later practice when the rules were relaxed, especially for organizations/guilds/institutions (ie. not particular nobles)). Crowns, especially ducal and royal CAN be "lined", though usually with a fur like ermine... and never with a...

** TORSE: this is the only really dubious aspect as a torse usually surmounts a helmet and holds on the mantling around it. It shouldn't be used as a lining... but it was a reference to those damn orange & black stripey Princeton ties we used to have to wear.

***ORDER:  the "Order of the Co-ed a Cappella Garter" is made-up knightly order [see the example of a coat of arms of Robert Dudely, Earl of Leicester, below bearing the Order of the Garter" (as do all the British royals)]. In a blazon, it would usually just state "Order of the ____" and everyone knows what that Order's symbolic  looks like... often it's a circle of gold stars or crosses... but in the famous "order of the garter" that I wanted to refer to for obvious reasons, it alway is blue with gold border and buckles, with gold writing of that phrase "Honi soit qui mal y pense." So I just provided the appropriate blazon for the Order parenthetically since it is not assumed.

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