Pricing help on display items?

[The_Future]

What are the value of these display items if anyone can help? I acquired them with some other items I bought and am thinking of selling them or trading them for some other items for my new display cases, and would prefer to not come in way out of the ballpark on price.

I have a little polarized tester with I think a snowboarder on it? (Might be a surfer) I don't have a photo of it.

Polarized sign

Metal block