This thought has just occurred to me. Since New Texas is pretty much breed happy, condoms would most likely die off, or their purpose would change from contraception, to more kinkier jobs.
If a cow wants to see how much cum her new boytoy's packing in a single load, she'd toss a condom on him and jack/blow him until he blows his load into the it, giving her a clear and visible indication of the volume his sack's packing.
Or maybe a faux-cow bottom (Cameron) wants to keep his sheets clean, and the easiest way? Toss a condom on his pecker and let the bull above him pound away till next Sunday.
New Texan mothers would be passing their newly Treated sons condoms in order to keep them from using up all the tissue paper in the house
If (provided they're hyper-elastic) you need an impromptu beanbag chair...
Hell, if someone wants to save a "snack" (or if a Bimbo -cum-> Genius cow needs a mental pick me up) a condom would be an oddly convenient way to keep it handy (provided the temperature would remain consistent).
It's an odd idea, but I feel it makes a semblance of sense.