The following is from http://stores.lego.com/en-us/Ontario/events.aspx:
Enter the 2013 Mini Model Contest!
The LEGO Stores are looking for a new model for November 2013. It should be something that represents the month of November, and is made of 25-40 LEGO pieces.
To submit your original design, simply email a picture of your model and your completed entry form to MiniModelContest@LEGO.com or bring a printed picture of your model to your local LEGO Store and complete the entry form. Entries must be received by store closing on September 30, 2012.
One winner will be chosen and will receive a complete set of 2012 Mini Models! Contest begins September 1, 2012 and is open to children ages 14 and under only.
Click Here for contest entry form. Entries must be submitted with the completed entry form in order to be eligible. Contest entries must be submitted September 1 – 30, 2012 to be accepted.
Click Here for full terms and conditions.