The word thingy is used informally, so grammatical rules pursuant to its usage are rather poorly established, but I would say that the logical plural would be thingies.
The plural form of apparatus is apparatuses. It has no foreign plural.
The plural is technicians.
The plural is productions.
The plural of rope is ropes.
The plural form is technologies.
its were the thingy is the other thingy
A Science Thingy Thingy
small thingy, red, small thingy off, big thingy, orange, big thingy off
small thingy, red, small thingy off, big thingy, orange, big thingy off
A blob thingy?
No, 'thingy' is not even a word, it's slang.
A thingy is a weird, describing synonym for thing.
it is the thingy that does a thingy and it is used in the respiratory system.
The thingy you speak of is profoundly called a What-Cha-Cha-Macallat and you put there special brand of fajita sauce on it.
the thingy that is against republic is a thingy that fights with the republic.
Cairo thingy is KASEY!!!! Cairo thingy is KASEY!!!!
Put your thingy in its thingy micbober