Nexus used to send samples if one requested them. I've done this a couple of times.
Current site doesn't say much about this so I think they have tightened up their policy.
On their "contact us" page, however, they still refer to samples.
I'm sure their intention is to provide samples to companies that might buy a lot in the future. But who knows.
Perhaps Matt from the Matt Supply Company should request a sample via the contact form. (The Matt Supply Company's vision is to supply Matt with anything he desires).