FYI:One man's solution to ball oilers:

[savarin]

Ah, old printer ink refill bottles, never thought of that, good one

 

[Bob V]

Thanks for all the great ideas!
--guess I'm not the only one who has trouble with these.
Bob

 

[Cadillac STS]

Large syringe and large diameter needle meant for horses from Tractor Supply, blunt the sharp tip a bit with abrasive. Pushes the ball aside and injects oil.

 

[savarin]

just done the ink refill bottle. works a treat thanks.

 

[Holescreek]

A couple weeks ago while shopping an antique mall I ran across this Schaublin oiler.