Carwardine Queuetape Archive/Gerald the Guinea Pig's Tape Test Concepts

Gerald the Guinea Pig's Tape Test Concepts was a block on some of the Carwardine Queuetapes in the late 90s and early 00s, inspired by the Cartoon Cartoons and Oh Yeah! Cartoons cartoon blocks on Cartoon Network and Nickelodeon respectively, this would test out new cartoon concepts for the queue tapes.

The Anton Schwarzkopf Show

 * Director: Eito Carwardine

This was a test concept about coaster manufacturer Anton Schwarzkopf (voiced here by Hank Azaria), as he tries to make a living outside the coaster world, often comically failing, this failed to be picked up due to Anton Schwarzkopf personally disapproving of the concept.

Mario Goes Back to Japan

 * Director: Jimmy Barrera

Young Chris Carwardine

 * Director: Amaya Carwardine

This test concept was a parody of the "Spinoff Babies" trope of shows, as it starred a younger version of Chris Carwardine (voiced by Tress MacNeille) in the post-war 1940s learning about stuff like science, mathematics, and a whole lot of other stuff during his tweenhood, this succeeded and was picked up for 65 episodes.