Is it possible to purchase a fighter-jet canopy?

Not possible in F-16 as it is single bubble and much thicker. Even though it gives amazing view for the pilot, the ejection depends on the jettisoning of canopy as the question mentions. This might be little less safer than having a shear explosives. They were tried on F-16 but not found satisfactory. read more

Certainly. Its just a Plexiglas bubble with some attachments, after all. If you are willing to settle for a “surplus” one (i.e. not brand-new), then you may be able to find them on ebay, or specialty “warbird”/militaria collector websites. read more