The soundtrack to Kids features two tracks by Daniel Johnston (Casper and Casper the Friendly Ghost), one of which featured a music video directed by Harmony Korine in 1995. The video has never been released.

Kids - Soundtrack (1995)

Sonic Youth's Thurston Moore, interviewed by Jay Ferguson for the August 1998 issue of Chart:
Korine did [a music video] for Daniel Johnston that nobody ever saw, which supposedly involves him filming this kid having an epileptic fit on his Grandmother's floor. MTV saw it and said that they wouldn't show this in a million years.
In an issue of the Village Voice from 1995, Amy Taubin wrote:
Cary Woods informs me that Harmony and Larry have each made a music video for the Kids soundtrack. 'I didn't want to tell you,' says Harmony, 'because I hate music videos. They're just commercials. But this is more of a documentary. It's about a kid with epilepsy and his mother.' The song is by Daniel Johnston, a Texas singer-songwriter, who, Harmony says, is obsessed with Casper the Friendly Ghost. 'He's written 40 songs about Casper.' The character Casper in Kids is named in honor of Johnston.

Harmony's video has no fast editing, no clips from the movie, no shots of the band. He doesn't think MTV will play it. It seems, like Harmony, ahead of its time, which means it's exactly on the mark. It's also extremely moving. The epileptic kid is a metaphor for teenage turmoil, for the feeling that you're jumping out of your skin.