TODOs for PyData's Julia [mini]sprint

On the 21st of this month, PyData NYC is hosting a few language (mini)sprints.
I am the coordinator for Julia’s. One of the people running PyData suggested I arrive with a categorized issue list. The intent is that people attending will want to do something to further Julia, and different people will be comfortable with different tasks. We are at liberty to provide whatever suggested tasks we feel appropriate.
It is an opportunity to get some work done and attract others who may become contributors. The event itself is 4 1/2 hours, so tasks should be advanceable to some reviewable state with experts [you, possibly] helping via Slack. Please advise.