Pet Supermarket doesn't have sugar gliders. But more importantly, why would you want one not "winged" (I assume meant 'weaned' since they don't actually have wings)? Taking a joey from its mother early is crazy stupid. Unless the mother rejected the joey or died. Come on, this is pretty much common sense stuff!
You might want to try a more exotic pet shop. This place mainly has domesticated pets and supplies. Sugar gliders require lots of training and care. Plus they're hard to legitimately find.
Thanks! Your answer is awaiting moderation.