QUOTE(mechafujoshi @ Oct 3 2012, 23:34)

What about an option to use audio captchas instead? You hear a crackling, synthesized voice say something about ponies.
That may be the first sensible suggestion you've made.
Other possibilities for that would include animal noises (like uh, an elephant or something), sounds of water, etc. All pretty distinct and I'd wager rather hard for bots to recognize. (probably harder than spoken words, actually).
> Mana conservation skill
And the prize starts at what, 5M?