Sooo. You liked the previous article about butterfly knife tricks. You got bit by the tricking bug (and maybe even by the knife itself). You now feel empty when there's nothing in your hands to play with along the day.
Unfortunately, flipping knives around is not really the most socially acceptable activity in most of places. It might not even be legal in many of them.
Worry no more (pun intended). There is a safe, discreet and accessible way to get similar sensations, that you can make right now and carry with you anywhere : Begleri beads.
02/11/2016 Update:
If you're not convinced, watch this cool tricks video on the topic: