I did the same thing with the oil inside the lenses, lucky I was scrapping outside on gravel.



The lens setup can be used to make a ghetto 'projection TV'.

Basicly they just put the screen of a 14inch CRT in where the old single color CRT was & build a wooden box around it.
They turn up the brightness as far as possible & the lens throws the image out of the box, onto a wall etc. The image is backwards, so often they use a mirror to get it right again.