When I was a kid in the city, we used used to save our popsicle sticks from the ice cream man.
There's all kinds of fun to be had with popsicle sticks... We would sharpen them on the curb to make "knives"... Or, we have "boat races" with them, down the street in a heavy rain, in between the curb and the tires of parked cars.... Lol, that was fun stuff..
But the "Ninja star" was the coolest toy that can be made out of popsicle sticks, bar none!
It actually flies pretty good, and it takes some skill to be accurate with it..
And the coolest part is that it explodes on impact!
... But then you just put it back together and play again!
This one is just some scraps that I had on hand today.. The proportions ain't exactly right, but you get the idea..