Hi speedy,
I did look at those but I wasn't sure exactly what they were and what mess they would make so I went for the slingshot and glass beads. That didn't prove very effective either. With the current lockdown situation I'm not sure if we are even allowed to walk around the streets, with or without a gel blaster.
Small ball fishing sinkers hit a lot harder! Even round ice cubes work quite well, and leave no trace.
I have a simple tubular rubber equipped slingshot, that I bent up from spring steel rod. It's even totally legal in Vic, as it's home made.
Very effective for discouraging dogs that crap on my 'open to the street' front lawn, when their owners aren't watching...
