Bumbo Oldoni is a parody of Bumbo Cactoni built by MumboJumbo in Season V of Hermitcraft. He is made out of white blocks like snow, diorite, white concrete, and quartz. He is located in Mumbo's underground temple. There is a wishing well in front of him where players can throw in items. After an item is thrown in, a randomizer decides which one of the two possible outcomes will happen, similar to the Temple of Notch.
During planning, Mumbo had it so a happy noteblock tune would play and diamonds, emeralds and iron would be dispensed from Oldoni's Mouth. After building it in survival, this was changed to diorite being dispensed.
A sad tune will play, Oldoni's eye's will open and water will pour out.