Drugs 'n' Darts

[hobgoblin]

all kinds of nice weapons show up in urban arcana, air pistol and rifle, blowgun, paintball gun and so on

and the description of the air guns talk about them being used to deliver poisons and similar...

something i would interpet as not needing special ammo, just use the normal "apply poison to weapon" rules and fire

 

[lukelightning]

Holy water capsules for vampire hunters. Or silver-tipped hypodermic needle darts filled with holy water (or wolve'sbane for werewolves).

 

[Jim Hague]

Holy water capsules for vampire hunters. Or silver-tipped hypodermic needle darts filled with holy water (or wolve'sbane for werewolves).

Or silver nitrate - cheap to make, and it explodes. Of course, you could also load silver shavings, iron filings...the possibilities are broad, limited only by the perversity of the players and the permisiveness of the GM.

For info on making paintballs:
http://durtydan.paintballresource.org/www.durtydan.com/ddpis/1aboutpb.html
http://www.rps-paintball.com/process.asp