1. 42" Carbon golf club shafts. $5 each on eBay.
2. Cork grips. $2 each at my local fly fishing shop.
3. Leki tips. $7.50 each from REI.
4. Bicycle handle bar tape. $10 at my local bike shop.
I glued the cork grip to the very top of the shaft with Gorilla Glue (it took a bit of filing to make the inside diameter of the cork grip fit the shaft) and wrapped a 9" section below it with foam bicycle handle bar tape. This "dual grip" compensates for the fact that the poles are one piece and can't be adjusted to be longer or shorter for going up or down hill.
When going downhill, I can hold the pole by the cork grip, giving me extended reach to compensate for the downward angle:
When going uphill, I can grip the pole lower down on the handle bar tape, giving me a shorter pole for steep ascents. One advantage is that you don't have to stop and adjust anything--just slide your hand down to alter the length instantly:
Finally, I epoxied the Leki tips to the end of the pole. I chose these because I already have attachments such as baskets, snow baskets, and rubber tips that fit Leki: