"My family's workplace has been making these sneeze guards in Australia.Their model was to create modular parts that can be laser cut. (They only use cast acrylic, as extruded can't be engraved)Then they use these joiners to hold them together. Their main business is signs, so they had the machines and it's been a great help to the business in the pandemic as other parts of the business lost traction.There's a bunch of photos here of some their products.https://signsplus.com.au/engrave/sneeze-guards/They even created custom heavy duty brackets, so they can be attached easier to benchtops.Love reading about all the new innovations and the way businesses have pivoted to adjust in the world with Covid-19."

"The person who is selling on Aliexpress, is probably just doing research to see if there is demand for the product. If there is a demand he or she will find a factory in China to make it. No body going to copy something if there's no proof of demand for the product."