I just finished weighing all of them, and here are their birth weights, in birth order:
Catwings 2.6 oz
Black & white 3.4 oz.
Orange & white #2 3.6 oz
Calico 4.0 oz
Here's the proud mama with her litter. The one in front is Catwings; you can see one of her "wings" on her shoulder.
Here's a short video that my daughter made after all the kittens arrived.