Here's my Django laboratory; I use it for tests, fun (1) and source of material for my Python / Django course.
Several projects are available on github under GPL license; others are patiently waiting to be reviewed and adapted to the latest framework version.
(1) I know, it's a little bit weird...
ExpenseTracker tracks expenses and extracts some statistics.
It is a starting point for the course: some pages are deliberately simple while others are slightly more sophisticated; for the expenses list, I have used a Twitter style "infinite scroll", as an example of Ajax.
I have also used Bootstrap and AngularJS.
KissPM is a mini project manager: Kiss, in this case, is not the band, but the acronym for "Keep It Simple, Stupid!".
Currently it is little more than a prototype; here's some features:
The task board on the first screen is a single-page application from which many of the main operations can be performed.
A minimal todo manager in which most features are deliberately missing; the features are as follows:
It's not a Django app, but I decided to include it in my lab.
It is a prototypal MIDI monitor, looper, and recorder written in Python. Inspired by Boomerang Looper pedals for guitarists - except that you don't need a MIDI pedal.
More info and source code on github.