Wow, arcti, you're my hero! You're like the McGyver of lamp building! and I like your collection.
I wondered about trying olive oil in a lamp too. I read this book about the "history of the night" and it had all kinds of cool info about lighting from the late classical period/early middle ages to the advent of electricity. there was a History Channel show based on this book a couple years ago, but the book was much more informative.
Amazon.com: At Day's Close: Night in Times Past (9780393329018): A. Roger Ekirch: Books
It got me thinking about trying to burn olive oil and other "fats."