The way you do it on the same account, (since such items have at least 8min rot time, and generally upto 30mins), is to pre-move the Monk to a safe but nearby spot, camp out and switch to the Warrior. Take the Warrior to the planned spot and kill until the item drops, then camp out as quickly as possible (if the rot timer time is 8min, otherwise you can take your time finding a safe spot), and switch back to the Monk to loot it.
**** EDIT ****
If you have the fletching skill, you may want to look into, either
Fishbone Darts or
Whittled Fishbone Darts.
Alla links:
Fishbone Darts and
Wittled Fishbone Darts **************
Yther Ore.
Edited, Mar 13th 2009 8:03pm by Yther