Yes, I recall Chisel is one of our international members (well, to us Americans anyway). They may not have the same kind of services where he lives.
I wonder whether this will work: <
https://www.youtube.com/watch?v=vTVyRW55L4o>. Maybe you can even buy a water bottle for birds and modify it.
Try dry food for kittens. That may be your closest equivalent to the goldfish rock.