Curvaceous Cave and Cavegirl Booberella

The  are two limited-time premium consumables that were released on May 30, 2017, as part of Act 1 of the Time Traveling Toaster 2017 Event. The one offered depended on if the player had unlocked Booberella.

It returned on August 24, 2018, in the Time Travel Mystery Capsule during Act 2 of Moe's Ark 2018 Event.

It was re-released on June 9, 2021 during the Springfield Enlightened 2021 Event as a possible prize in the Banned by the Buddha Mystery Box.

Bundle 1
For players who hasn't unlocked Booberella, for the price of 150 donuts, they could have obtained:
 * Booberella.
 * The building Curvaceous Cave.
 * Cavegirl Booberella outfit.

Bundle 2
For players who had already unlocked Booberella, for the price of 100 donuts, they could have obtained:
 * The building Curvaceous Cave.
 * Cavegirl Booberella outfit.