I use a toke stone for my roaches.
My toke stone is nothing more than an old brass oval medallion removed from the beaded "pull-chain" of my ceiling fan. For those who are curious, the roach is placed in the larger of the two holes of the medallion. The smaller hole is where you hit.

If Im in travel, and my toke stone doesnt somehow make the trip with me, I'll just eat the roach. :rasta: