We don't get too much quirkier than this I should think.

A gourd belonging to a wealthy Italian family contains the dried blood of Marie Antoinette’s husband, the beheaded 18th century monarch King Louis XVI, according to livescience.com.

Scientists confirmed on Dec. 30 that the gourd contains the blood of the late French royal, lending credence to longstanding folklore that the king’s blood was wiped off the guillotine in 1793 with a handkerchief that was later stashed in a gourd.

Scientists confirmed the blood’s owner by matching it to DNA from the mummified remains of King Henry IV — a direct ancestor of Louis XVI.

The gourd is decorated with likenesses of French Revolution heroes.

The article does not explain how the gourd got into the possession of a "wealthy Italian family" but it does note, It is unclear how much the blood-containing gourd is now worth in the aftermath of this week’s revelation.
http://dailycaller.com/2013/01/02/scient...d-of-louis-xvi/