I've played with doing that before but don't like how it crush's the fibers down. Like to find some with really big barrels so it didn't crush em down. I posted a pic of this bobbin in the Leds thread about them - don't know what kind it is but love to find a bunch with the big barrels.
I actually found a chenille bobbin on ebay a year or so ago. It has about an 1/8 of an inch opening. I rarely use it other than for braid of a fine tinsel. But they do make them.