Below are links to websites that provide methods to order samples of material. SolidSurface.com does not maintain these sites, or guarantee that the samples will be available for every color.
Affinity: Order online at SolidSurface.com
Avonite: https://aristechsurfaces.com/order-a-sample.html
Corian: https://coriandesignsamples.colors2u.net/
Formica: http://www.formica.com/en/us/products/formica-solid-surfacing-home#swatchesTab
Hanex: http://hanwhasurfaces.com/site/hanexcollection/
LG HI-MACS: http://www.lghimacsusa.com/productOverviews/33/by-product-line
Livingstone: Order online at SolidSurface.com
LOTTE Staron: https://www.staron.com/staron/us/about/ordersamples/sampleStep1.do
Meganite: https://www.meganite.com/en_ww/sample-request-form/
Mystera: Order online at SolidSurface.com
STUDIO Collection: https://aristechsurfaces.com/order-a-sample.html