frozen brine is the easiest way sanfrancisco bay makes a few brine hatching devices, one sends the adult brine into your tank only when they are big enough i feed the baby brine phytoplankton, although any fine filter feeder type food will do
There is a type of filipino nunchaku but it has a longer chain and shorter handles so handling it is different from a japanese style pair of chucks. Escrima is widely known for being a simple and effective form of self defense. However if someone say...
See if anyone on your team has one of these sticks so you can try it out... That way you'll know if they're what you are looking for...