‘Girls’ Star Zosia Mamet — Much-Mocked Kickstarter Fizzles Out

0607-zosia-clara-mamet-gettyZosia Mamet is enjoying a cultural moment as one of HBO”s “Girls” … but NOBODY WANTS A CRAPPY MUSIC VIDEO from Shoshanna and her bad-banjo-playing sister … we know, because their Kickstarter campaign just ended — and it BOMBED.

The HUGELY MOCKED effort — which closed today just before 1:00 PM PT — raised the pathetic sum of $2,783. That”s less than 10% of their goal of $32,000 … and Kickstarter is an all-or-nothing deal … so they get NOTHING.

Zosia and younger sister Clara announced the video May 26 … and the Internet trolling was INTENSE … especially because the self-styled Cabin Sisters say they started the banjo-and-body-percussion band as “an excuse to spend more time together.” It didn”t help that the girls share a famous father and make TV-star salaries (Clara is on NBC”s “The Neighbors).

Some thought the tone-deaf plea was a prank … meant to call out Zach Braff, Kristen Bell and others for milking Kickstarter … but our sources confirmed with reps — the girls were serious.

Braff and Bell proved that a good idea can BLOW UP on Kickstarter … Braff”s “Wish I Was Here” raised $3,105,473, and the “Veronica Mars” movie raised a whopping $5,702,153.

The Mamet sisters” highest pledge was $100 … and nobody TOUCHED any of the 7 higher price points … in all, only 80 people backed the widely publicized project — most pitching in a buck.

Too bad they can”t keep the dough they DID raise … enough to buy a couple of sad trombones.