If I might make a suggestion...
So you get the most bang for your buck to start out with, buy a double pocket Bandando and a Koppo Stick. The Koppo Stick does
not have a lanyard, it has a small loop of ParaCord to insert you middle and ring fingers in. Then you close your hand, making a fist and you have a double ended fist load. Not only does it reinforce the fist, you can strike with a hammer fist (bottom of the hand) or a reverse hammerfist (top, or thumb side of the hand while closed) or you can slap open handed, chin jab with it, etc. Added to which if you are fortunate enough to grab the attacker, you have something that actually makes tired old wrist and finger locks
come alive.
This nifty thing was something I pointed out to James some time ago from Hatsumi Sensei's book (now out of print, find a copy) "Stickfighting." It was used for
eda koppo bone breaking techniques. Just a little wooden palm stick that I thought would be neat constructed out of Titanium. It is
high speed, low drag.
So, if you have this versatile little tool that fades to nothing at night on a city street, you can walk down the street with your hand in your pocket, or in plain view and only the sharpest folks would even notice it.
Put it in one of the pockets of the Double Bandando...then try some things that have been written about on here. Again, we take a step back to the Japanese Arts...try to pick up a copy of Gruzanski's "Spike & Chain." (again, out of print, you beginning to see a pattern? Sorry...) Grizanski's work was never the final word on the manrikigusari/kusarifundo Japanese Weighted Chain, but it is a good place to start.
High speed stuff that will work with this combination Koppo and Bandando would be Jim Keating's Comtech Bandana Video...
JSP Bandandos are extremely tough, extra reinforcements and they shine when doing this stuff...
Then you could get another Koppo, carry one in each hand, put them both in a Double Pocket Bandando (velcro closed pocket on each end) and away you go.
I have 2 Koppos, 1 Pocket Meteor, 1 12 inch pointed Wang Bo, 1 pointed 8 inch Ban Bog and a regular 8 inch Ban Bog stick...a few of the original Bandandos and one of the new double pocket Bandandos...all of the stuff is great. 2 V-Gar Systems...and a partridge in a pear tree...