This lamp made from x-ray film is on sale here on Etsy (place for all things handmade). It was one of the featured items on the Etsy homepage and immediately I recognized it as science! In fact, the person selling it works at the same institution I do (but I have no idea who it is). The black smears and dots on the film are either DNA, RNA, or protein from Southerns, Northerns, or Western hybridizations.
Just like with photographs, you only really need the one that gives you the best picture. You try a bunch of exposure times and have a lot of crappy ones. Well, this person recycles the crappy ones instead of tossing them in the trash or keeping them in a notebook. Why she throws out records of data, even if the exposure isn't the best, I don't know (lighter or darker exposures sometimes show you things you didn't notice in the one you thought was the "best"). And profiting off of work stuff? Kinda sketchy if you ask me.
One positive note- it's nice when people see the aesthetic beauty of their work.
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