You may want to see a removable basket by onrust..
My black Basket comes off and becomes a hand basket.
Great at Burning-Man when you go to Center Camp.
Lock your bike and take your gear with you in the black hand basket..
While the Steel Baskets on the pink ladies bike has complementary
unfolding baskets on each side of the back wheel.
They fold open when a need arises..
Note the nice hack necessary to mount the dual rack to the pink bike..
Unless, somehow you put your foot in it......
Ergo, it is the objective to attain a sufficient equilibrium of balance
to use a bike with a loaded basket while navigating from home base
to class room and back again without incurring more then the one
obligatory road rash ;-)