I have a first gen Nexus Speed trim meter, no cover. Basically, an expanded scale knotmeter. You zero it with a push button, then it tells you if you are going faster or slower. $15. And postage
Wind masthead spinner assembly. Original two blade style, just the nose assembly, spinner blades, nose, new bearings, shaft, and funny ying/yang ball. Includes some extra bearings. I doubt this is available from Garmin, new owner of Nexus. $15 and postage.