Small pet carriers

My lovely bunny has chewed through the main zipper of his carry case, making it a lot harder for me to get him in and out of it.
I am vaguely looking for a new carrier, and it's been hard to find something small enough that he won't shift around in too much.

Here are some I am considering:

$12 Super pet small carrier
7-1/2-Inch long, 10-1/2-inch wide, 6-1/2-inch high
Includes exterior mesh windows for ample airflow for your pets health plus easy clean-up vinyl interior

$9 Come along carrier (small)
10.5"L x 7.5"W x 6.5"H
fresh air vents, a handy storage spot, "E-Z" Carry handle and "E-Z" Zip double zipper design. 

$27 Checked carrier
16"(L) x9"(H) x 8"(W)
Three zippered doors design, you can let your pet in and out easier.
Comfortable bottom pad make your pet sleep comfortably inside the carrier. 
This carry case is airline approved and can put under the airline seat  

$27 Travel Gear front pouch case
 9.5 x 3.2 x 16.5 inches ; 1.5 pounds
Includes mesh panels for ventilation and visibility, inside leash clip

$27 Faux crocodile pet travel bag
Small: 7 x 13 x 9 (width x Length x height)
Airline approved