Canadian Actors
This is actually two lens ideas in one post. Create a lens about Canadian Actresses and one for Canadian Actors. You can do a general listing or your top ten favorites. Definitely include a guestbook for people to share their favorites. And an Amazon Spotlight module featuring your top five favorite Canadian movie. A quiz on Canadian actors would be excellent too.
Here are two lists to get you started:
Notable Canadian Actresses: 
- Pamela Anderson
- Neve Campbell
- Kim Cattrall
- Jill Hennessy
- Natasha Henstridge
- Evangelina Lily
- Rachel McAdams
- Carrie-Anne Moss
- Sandra Oh
- Anna Paquin
- Molly Parker
- Crystal Lowe
- Sarah Polley
- Shannon Tweed
Notable Canadian Actors:
- Aaron Ashmore
- Adam Beach
- Hayden Christensen
- Brendan Fehr
- Nathan Fillion
- Michael J. Fox
- Brendan Fraser
- Ryan Gosling
- Paul Gross
- Nicholas Lea
- Mathew Perry
- Christopher Plummer
- Keanu Reeves
- Callum Rennie
- Ryan Reynolds
- Seth Rogan
These lenses can develop into an index in the future if you create “Who Is..” lenses on each of these celebrities then link back to the main lens.