oddisyn posted this and I think its a good idea to inspire more pony art so I'll give it a try. :)
http://www.furaffinity.net/journal/6467892/

I'm using Honeycreme for this challenge: http://www.furaffinity.net/view/11632895/

Draw your pony…
1. … as a generation three pony! done!
2. … as an Alicorn princess! done!
3. … as a different gender! done!
4. … affected by Discord! done!
5. … in Galloping Gala attire! done!
6. … with their idol’s ponysona! done!
7. … with an different color scheme! done!
8. … as a seapony! done!
9. … as a breezie! done!
10. … as an Equestria Girl’s style human! done!
11. … in the show’s art style! done!
12. … in a style different than your usual one! done!
13. … as a filly/colt! done!
14. … as an elderly pony! done!
15. … in their Nightmare Night costume! done!
16. … receiving a present on Hearts and Hooves day! done!
17. … celebrating Hearth’s Warming Eve! done!
18. … as a different hooved animal! (Zebra/Donkey/Bison/Deer/Giraffe, etc) done!
19. … with their special somepony! done!
20. … with their pet! done!
21. … as a Changling! done!
22. … as a bat pony! done!
23. … as a crystal pony! done!
24. … under the influence of poison joke!
25. … in armor!
26. … as a superpony comic book character!
27. … as a centaur! done!

Done all I'm going to do with this list.