I made a new curved tube this year. It took me a few tries to get it right, and it ended-up being a little short, cutting off the failed attempts at forming the end just so. While spinning the tube to spray the oil directly onto the cylinder walls this year, the tube fell into the combustion chamber. As Scooby Doo would say "Rot roh!"
I have a miniature USB camera that fits into a sparkplug hole. I have it because I like to inspect my cylinders and cylinder walls for corrosion. Yes, it is true, I am OCD. I used said camera to locate the offending tube. I could see it, but not exactly reach it. I'll cut to the chase -- I ended-up buying some alligator hemostats.
I blew compressed air into the combustion chamber until I could see the tube through the sparkplug hole. It took a few iterations, but eventually it was visible. I carefully placed the alligator hemostats through the hole and removed the wrenched ankle. Or something like that. Here is a picture of my success, as well as a good look at the hemos themselves. I recommend having a pair onboard, as they are extremely useful at getting things in tight spaces.
My little victory:

My secret weapon. That's a six-inch machinist's rule:
