Story(-esque) Ideas Up for Adoption

I have had a couple of giant pony cum HiE tales cropping up in my mind, but I can't seem to develop them effectively. So I'm posting the effective synopses here for anyone interested to take any option up, provided I am credited for the initiation. The names involved are placeholders and needn't be used in any resultant work.

Journey to the Centre of the Princess

Contains endo

In essence take the Jules Verne story, but have the adventurers pass through a hidden portal that leads them straight into an enormous alicorn's alimentary canal so as to re-affirm the 'What We Now Know To Be True' aspect. Replace the way back with a plot-relevant burp.

Mega Pony Geoguessr

May contain harmless vore

Something I came up with while playing the distance-based multiplayer segments of Geoguessr. A select group of ponies opt for a live version of this game in that each of them will have a visual of a place on Earth and a limited time and number of guesses to figure out where; once the time and/or their guesses run out the actual location will be revealed to them while they appear on Earth at the places they last guessed where they're invincible giants, and then they must reach the displayed location. Points are gained by who gets there first (a race) along with different kinds of 'souvenirs' they pick up along the way. At least one of the Princesses functions as an umpire, allocating resources for them to set down as compensation for humanity and determining what happens to any of the 'souvenirs' they bring back.