This is Chapter 03.5 from the Ouran High School Host Club Manga series. Note: This partial episode appears as an "extra" in the manga with the title of "Hunny's Usa-chan" or "Hunny's Bun-bun," depending on which manga version you read.
Hunny's favorite plaything is a pink stuffed bunny named Usa-chan or Bun-bun. After accidentally spilling tea on the toy while Hunny naps, Tamaki and the twins search frantically for a replacement or bright idea to satisfy the sleeping loli-shota. Their plan is foiled with Hunny waking up and, as usual, in a bad mood. They beg Mori for help and he calmly tells Hunny the story he wants to hear. Tamaki and the twins despair because the answer is so simple, yet they'd concocted a crazy scheme that was bound to fail - and all for nothing.
Chapter SummaryA typical day in Music Room 3 begins with Tamaki scolding the twins for creating chaos and spilling tea on Hunny's stuffed rabbit, Usa-chan (Bun-bun) which happened when Tamaki tried to stop them as they tried to get Haruhi to wear girly clothing and she fled from them. She refuses their requests and they revert to hugging her, annoying Tamaki. Kyouya doesn't mind the horsing around, but warns that the noise might wake Hunny, who is napping. Haruhi doesn't understand what the big deal is and suggests they just wake him up and apologize. She's commanded to step back by Tamaki, Hikaru and Kaoru who tell her that Hunny always awakens in a foul mood and always carries Usa-chan (Bun-bun), the rumor being that it was hand-made by his favorite grandmother. He reminds Haruhi of Hunny's scary face during Renge's film and adding that Hunny's bloodtype is AB, a sign of split-personality. Haruhi is skeptical until Tamaki says Kyouya is also bloodtype AB.
Tamaki orders Hikaru and Kaoru to fly their family jet to Mt. Osore and bring back a medium who can channel Hunny's grandmother and make a replacement toy. The twins say he's a lame-brain, so maybe they should just get the rabbit cleaned. He then appears with a full-body rabbit suit for Haruhi to wear in order to fool Hunny for a while, but Haruhi says he should wear it instead. Tamaki cajoles her into donning it as he puts his stuffed bear, Kuma-chan (aka Beary), where the stuffed rabbit usually rests.
When Hunny awakens and sees Kuma-chan (Beary), he slams it to the floor. He then finds Usa-chan (Bun-bun) stained and gets angry. Hikaru, Kaoru and Tamaki beg Mori for help who calmly tells Hunny, "We just wanted to offer Bun-bun some tea," which surprises everyone, but satisfies Hunny. Everyone is then disappointed with themselves because they didn't think that such an easy explanation would work and they fretted over nothing.