How much do you think these domains are worth?

I own the following domains, and would like to know how much the community thinks they're worth. Much appreciated!

dropgold.net
dropgold.io
(There's a Drop Gold campaign by Grayscale)

hexshield.com
(Could be a cool Game domain)

lizard.io
(Single word, premium?)

hipstergigs.com
hipsterjob.com
(Idea for a job posting site)

bumpermachine.com
(Google's new product)

americandevs.com
(Idea for a job posting or freelancing site)

grubhive.com
(Food site?)

hexchip.com
(Sounds cool)...

How much do you think these domains are worth?

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