I have two N6s with cracked screens. What are they worth?

I have a Motorola bought 64 gig in white with a cracked screen that is still working. It's my everyday phone for about another week when I get my Pixel. I also have a Verizon bought 32 gig in blue with a completely shattered screen that has no image. I was thinking about listing them together for sale. Any opinions on what they might fetch?