Well, it is intended primarily as a form of artillery - with normal Archer/javaline throwing range. The culture which developed them would have deployed many of them and used them primarily as an ambush weapon - stop a calvary charge, or as point defence similar to using cannon with grapeshot.
This is not intended as a PC weapon or adventuring gear. I did not figure that all Items had to be PC items.
And yes, it could be used as a booby trap or rather lethal gag.
It was also part of a list of military oriented magic items I was working on, but this item ended up being described enough to be better then a scroll entry so I added it as a general entry. Maybe a backstory with it's intended use would have better set the stage... Go to Comment
The party wakes up in an inn around a table with wine goblets near at hand. They have forgotten all that happened the last day. As they seek to find the truth they come in contact with a man that gives them a job which pays quite nicely.
When they have finished with this rather dubious assignment they are invited to dinner by the the man...