Of course one must ALWAYS have a slingshot around. But on a Sunday morning walk with the family, a bulky Moorhammer isn't appropriate. So I always carry a mini slingshot.
Ammo is another concern. I actually loved LW's magazine idea
See his original model
so much that I decided to make another mini, with that mag design included.
5 rounds of 8mm steel! Held in place by a 3mm neodyme. Orange Osage on 9mm multiplex, finished in Linseed.
I put on very short bands, just 10cm active length. Kept the bands a bit wider so the 8mm still have decent power.