Both engines under the bench are in running order. I could have either running in less than 10 minutes. The model hemi has a clear block and heads with colored internal parts. When turned on the engine looks like it is running. It even has little light bulbs for spark plugs and they even ‘fire’ in the correct firing order. And smoke blown into the carb comes out the exhaust manifolds. It was a dealer display item from the late 60’s. I contend all the above meets the OP’s standards.
Oatmeal container -1
Contact lens cases- 2
Batteries- 15
Unsharpened pencils- 17
Little plastic things on the end of my shoelaces-
Total- 35
Darn. I’m still not the winner. 
Dang, THAT sounds pretty cool! How’d ya end up with that?
The word of the day is… aglet.
ag·let n.
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A tag or sheath, as of plastic, on the end of a lace, cord, or ribbon to facilitate its passing through eyelet holes.
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A similar device used for an ornament.
Found it at an estate sale about 20 years ago. I bought a car from the estate and I went to pick it up the day before the sale. I saw the hemi with a best offer sign on it and offered $20 for it and that was accepted. It had been used as a toy and was broken, it took me a couple of years to get it working again.
I have…
ZERO
I don’t think a subway car has cylinders. Even if it did I don’t really ‘own’ it.
Since I don’t ride the bus I can’t claim those.
I don’t have a lawn to take care of so I don’t own any gardening equipment.
Now I do have some cylinders that store the bodies of humans I’ve collected in a special fluid before I ship them back to the home world down in the basement. But I don’t think you would be interested in those.
Case of beer - 24 cylinders
Ranger - 6
Snow blower - 1
air compressor - 1
lawn mower - 1
wife’s Exploder - 8
AC Compressor unit (hah! you guys haven’t thought of that one!) - 1
Chainsaw - 1
small chainsaw - 1
canoe - 0
snow shoes - 0
Benz - 0. And in fact, non-existant.
Total: 20.
Anyone who gets hold of the “Spruce Goose” (Howard Hughes’ giant aircraft) could vault into the lead here. It has eight engines, comprising 4 banks of 7 cylinders each. That’s 28 cylinders per engine, 224 in all.
Each cylinder has two sparkplugs, for a total of 448 - a tuneup is no 20-minute affair.