Buddy, It's not necessarily the price of the wood, it's what you do with it. If you still have some antler and hickory, cut sections off the ends of each and swap. A quick segmentation and would add interest. You could add some accent between them with a slice of aluminum (aka Coke/Pepsi can) or thin plastic (coffee can lid or cutup the can). Lots of recyclables out there you can used. Even old or high interest cards have a use.
And the pen looks great.