I have an idea but did not read to see if anyone also had it.
New Year Healthy Pony Habits
The idea would be to create photographs of ponies taking part in changing bad habits to some really good and healthy ones.
My other ideas
Pony Hobbies: Pony photographs of hobbies and each person participating can not pick the same hobby as another person. So, you can list several hobbies from things we are familiar with to even some fun ones like sky diving or zip line the forest of Costa Rica ROFLOL.
Which leads me to the third idea:
Pony Vacations: Foreign Travel Pony style
Ponies Dark Humor: Using Ponies to portray various Dark humor jokes that fit within forum rules for content. This could be funny for those who have an appreciation for dark humor. It might be a good idea to pick a few jokes that Mods would say okay to and then each participant picks one from that group. I personally love dark humor.
Pony Rockers or the Rich and Famous Photographing ponies being Rock Stars, Rich and Famous People
Game of Ponies The idea here is photographs of your favorite scenes in Game of Thrones and watch the content when creating the photo has to be forum friendly.
I could go on and on but I will stop now.