If you need Boeing 737 throttle parts, handles, knobs levers etc. The go to this site here 737throttle.com. He has them for sale all the time and the pictures look very good. They are also on ebay If you don't want to buy them, the measurements are on there to, so you can make your own.

Found a sitr recently for the Boeing 737 throttle, i know this guy is looking for parts maybe he has some website http://737throttle.com. hope this helps. Let me know if he hsas any.