If you are talking about the straws, and not the baked honey sticks, here is what I do:
* Seal one end of plastic straw with a food sealer
* Fill the straw with honey using a syringe. Leave some open space at the top.
Now this is where the options come in.
I place them in a mug and put them on the kitchen table. They don't last long enough to worry about sealing them.
For travel, heat the top with a lighter or candle & pinch it shut. Another option is to fold the top over & tape it. Trying to seal the top in the food sealer has not worked out for me.
One thing I wanted to try but havent done yet is dipping the top in melted beeswax to plug it.