Try Crawling Round on your hands & knees .
Or sit upstairs & have a coffe , go into a catononic state , walk into the room in a trance ,stop , and reach down and pick it up .
This works in a 2000 sq foot wood shaving floor with a similar sized Norton timing cover oil seal 'O' ring .
NEXT TIME YOULL BE MORE CAREFULL .
Get a strong light . I use a flashlight . If you find my ruler or two hobby knives while your looking , would you let me know .
You may as well put some pictures on here, of any mods . While your in there.
Lees Machine shop here should be able to whip up a batch , and keep everyone satisfied .
https://stunthanger.com/smf/lee-machine-shop/ Get Im to do some 25 LA/FP & 35/40 ditto Wrist Pin Pads
while he's at it .
Maybe you were washing it in acetone & left them in it when you threw it out on the lawn .