Funnel for Seal-A-Meal

During our last move we apparently misplaced the original funnel for filling the plastic storage bags for the Seal A Meal. We've had this thing for thirty years where you fill the plastic bags with your prepared food and put in the frig or freezer and then to reheat you place the whole bag into a pot of bowling water or that new invention a microwave.

Last night as my wife was stuffing a batch of sweet potato into a bag and getting it everywhere i had the brainstorm, why not just make a new f