Dichloromethane, aka methylene chloride, is the base for traditional furniture strippers. It is an excellent solvent for many organics, which is why our protocol for washing sample bottles when I worked for the US EPA included a final rinse with the stuff. Our hazardous spills people loaned me a hazard materials/ space suit, which I used to wear while rinsing the bottles outside in the parking lot of the suburban Cleveland shopping mall where the Ohio district office was located. Drivers passing by while hunting for a parking spot used to turn and stare at me for some reason.
I would be rather surprised if the drinking birds imported from China contained DCM instead of alcohol, since it would be harder to get permission to ship.
