Ok, here's a really detailed explanation of what it will be.
The CigaretteWhen you equip it, it will spawn at your mouth. When you hold the mouse button, your health slowly decreases. While smoking it, the tip of the cigarette will spawn small smoke emitters. One cigarette can drain up to 50 HP. When you've smoked the whole cigarette, a "Cigarette" Projectile will fire, and if someone gets hit by that projectile, he'll lose 10 HP.
And, here's some pics of the model. Excuse the page stretch and the huge pictures. (I know it's easy to make, but we all have to start from somewhere.)




I need someone to make:
A script
A projectile
If you do this, PM me. I'll give credit.
Oh, and one more thing: how do you convert Sketchup models into Blender? Or is changing the name from BLCigarette.skp to BLCigarette.dts enough?