Yes. Via the Internet. Some sites, like fishpond.com, ship to the US. Other sites have digitalized the books. Some, such as the University of Nebraska-Omaha, have even made the books available for free. Source: about 2 years ago

If you had time to order, I would suggest https://sciplus.com/. Source: 11 months ago

They have a decent website Https://sciplus.com/ But to be honest that may ruin how weirdly cool it is. Source: 11 months ago

American Science and Surplus has a 4-1/4" crystal ball with a stand and a presentation box for $31.50 plus shipping. I got two for friends years ago and they are extremely nice. The company is at sciplus.com and you can search for "crystal ball" to find it. Source: about 1 year ago

You can buy surplus air regulators cheap. They're not the kind that sits on a gas cylinder, but are meant to be used in an air or gas line. I think I got them from sciplus.com although I'm sure you could get them on ebay. Source: almost 2 years ago

American Science and Surplus (used glassware, sometimes of exceptional quality). sciplus.com. Source: over 2 years ago