Last night while cleaning the kitchen and the livingroom (yes I do clean now and then), I pulled out my Otto Koning tapes and listened to #11.
Otto was a missionary in Paupa New Guinea and has some of the best stories! Today I discovered that you can hear him online! The Pineapple Missionary I recommend downloading the sermon, as you should listen to it many times :-)
If you really like him, you can purchase the entire 12 tape or cd set here