Sorry, I mis-understood. I thought you want to get the last bit out of a bottle.
If you want to have them for most of the day, get those plastic squeeze bottle people use for ketchup and mustard. Pour honey/chocolate in and cut the tip so the flow rate will work for you. Because the plastic is softer, you can make your drinks faster. Use a shot glass to figure out how many seconds it will take you to squeeze the amount you need. We use Torani chocolate sauce that we keep in the frig, and don't have any problem. Just remember to have multiple bottles lest you run out during rush hours and have to refill.
Oh, are you open on Sunday? We are going to be in NYC and figure we come and see S.R's handy work.