Oh My G*D, and ruin the patina of centuries? I can hear the outraged cries of museum conservators... "you desecrated your priceless collection!"
Ahhh yes, my famous collection of African throwing knives, years and millions spent gathering the rarest and strangest....
Actually, my 'collection' of Fang knife/currency exists only in my computer... I got the pic's from an on-line gallery whose name I now can't remember... Would you like me to post a few more?
Just found the link-
http://www.hamillgallery.com/CURRENC...gCurrency.html
Now you'll REALLY go crazy, Tim!