Here are a few of mine:
This first one holds a special place in my heart. It's a Spyderco Delica my wife bought for me on our honeymoon a few years back. It has a Malachite handle inlayed with yellow mussel shell. Simply gorgeous!

This one is a limited edition Benchmade Ares with a carbon Fiber handle and D2 steel for the blade, very very excellent knife:

I'll post more later, I just wanted to get the thread started!