In 2015, Gavin Free and Dan Gruchy of the Slo Mo Guys, filmed themselves in super slow motion hitting blobs of jelly (jello) with a tennis racket. The pair decided to revisit this trick, this time using more colorful blobs of rainbow gelatin, which turned into multi-hued serpentine bits after a strike of the racket. This oddly beautiful event was filmed at 12,500fps and 6000fps on their Phantom v2640.
Rainbow Jelly Tennis! Gav and Dan take a revisit slower and colourful-er. Dan also got way more annoyed than he did the first time. Success all round.