A Twitter bot is something that can be easily done in Python, I feel trouble free doing this.
Relevant Skills and Experience
I have experience in Python and C#, but I feel more comfortable on coding with Python; I can do this in 1 or 2 days.
Proposed Milestones
$10 AUD - Creating a Twitter bot.
Note that for a Twitter bot I've considered tasks like tweeting, retweeting and favoriting; Anything that run away from this, like a "bruteforce bot", can take more time.