you've missed a trick, the shaft could be made hollow and the handgrip locking firmly into place but unscrewable and watertight....behold the mighty ice tool/hip flask!
Press Release Arc'teryx Climb Academy returns to the Lake District: May 25th – 27th
News Lorraine McCall Starts Grahams Round
Lorraine McCall began her attempt today at a continuous, self-powered round of the Grahams, a four-month tour of upland Scotland combining walking and bikepacking. If successful, she'll be the first person that we know of to do it.