i figured out the best little one hitter ever.
Get a glass eyedropper.
Take off the rubber end or whatever is there so that there is only the glass tube part. It should just be a tube with the end tapered... then take a screen (screw off the bottom thing on your sink, there might be some there) and cut it so that its really small.
Take a screwdriver and push the screen down into the eyedropper as far as you wish... and there you go.

Just break up the weed pretty well and get a tube or something (i use an old glow neclace, like the ones that glow when u bend them, it fits perfect) and use that to pack it down.

Just be careful cuz mine broke as i sat on it... lol but i used to pack it with on e or 2 hits, hit them in my room and cover the ends of the holes with my fingers (u may get burnt but my fingers have been burned so much that it doenst bother me anymore) and then blow it out my window.

Its also really small so its easy to hide, just put it between ur ass cheeks or somethin