What are they for? your illustration doesn't allow for conformity all the way around the stick. It also is not a "straw.
If you need them round. You could get two pieces of metal that would bolt together. Long 15" wide and long enough to accomodate 25 holes.
Tightly bolt the two pieces so that they are mated together and get a long shank drill bit. Drill your holes verticaly from the ends down the 15" length with the center of the bit lining up with the seam.
You take it back apart and clean it up and all that, bolt it back together, fill it with your solution, bake it or whatever (I'm sure you need to coat it with something) after it cools, unbolt it and pull the halves apart and voila, round sticks.
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