I used to have a Zen rolling a machine and it was sweet. All I had o do was put a paer in, put in and lightly pack down the busted up weed, lick the paper, close the lid, and out came a perfectly rolled joint out of the slot. It broke though from rolling too many joints. The metal hinges jusr gave out and I haven't bothered to buy another one.

I can usually roll one myself, but I do like the machines. They're handy.