That's a cool idea. However, I personally don't carry a multi-tool. I do carry a pocket knife.
It never occurred to me slingshots could be outlawed. An Internet search revealed Australia and the state of New York, seriously? I'd like to see the people who made these laws. It's hard to imagine such humans actually exist. I bet they'd also like to ban arms and legs that are over a certain strength level.
New York outlaws everything that could be considered fun or dangerous. I think you actually can't walk outside w/o a helmet and knee/elbow pads.
But, no politics on ETS ...