Here is the thing you need, Bob:
Cut half the syringe tip off to make the opening bigger.
I warm up the peanut butter in the microwave to thin it, then use a Popsicle stick to load the syringe, put the plunger in place, and squirt the goods into the container. It takes several syringe loads to fill up the GoGo, and you have to tap the bottom of the container to get the peanut butter to settle to the bottom, and then I purge air for the next syringe load. When done, it's a sweet way to carry 3-4 oz. of peanut butter. It's a fairly messy job to fill the containers, but it's only a once-a-year thing, and of course the shelf life is great.