How Do You Motivate Members To Particpate in District Activities?

How do you motivate Toastmasters Members, and especially Club officers, to get involved in activities outside the club?  Activities like Toastmasters Leadership Institutes (TLIs), Area and Division speech contests, District Conferences.  This video shares a method that worked well for me.

What methods have use used to motivate Club Officers and Members?  How well did they work?  Is there anything else you'd like to learn?  Please leave comments with feedback, questions, and your experiences.