does any one know where we can get the new style grass catcher for our wb's,,they are side mounted,shaped like a garbage can,made of heavy duty fiberglass,hold just as much as the metal grass gobbler,i saw them on another crews truck and he said his boss bought 6 of them and that they are the greastest !!!!,,but the guy said he has no idea where his boss got them at,,any info you guys have would be great !!!