Tissier Sensei Performing Aikido Koshinage Techniques

While I really don't like the music in the video (it reminds me of the music from the original mega man) the koshi throws are very nice.

Aikido Koshinage With Takeno Sensei

I really like the way Takeno Sensei is showing koshi, his connection is very nice.

Basic Koshinage With Ikeda Sensei

Here's a basic exercise to start learning koshinage.

Koshinage By Ikeda Sensei

Here's a great slow motion shot of Ikeda Sensei performing koshinage off what appears to be a Shomen strike. Very Nice.