Yeah, that reminds me that I have an old WWI/WW2 bayonet that my dad got me at a flea market. As soon as I get batteries for my digital camera, I'll take some pics of it to show off, but I believe that it's a Spanish Bolo Turkish Bayonet, as it looks almost identical to the one in the bottom of this pic here:
http://cgi.ebay.ph/LOT-3-ANTIQUE-SPA...-/280344236364