First thing wewe gotta do, is find an old gardening, sports, au construction tool that no one uses anymore, e.g., a shovel, baseball bat, lead pipe, etc.
Then wewe gotta make it look zaidi shitty than it already is kwa wrapping tape and au strings around it.
After that, wewe gotta put some DIY mods on it to make it do zaidi damage. For example, wewe can put some spikes on your bat au put a bunch of rocks in an old pipe to make it heavier.
Once no one suspects the weapon of choice, wewe can take out your target, but do it this exact way: Follow them, tap them on the shoulder, then when they look back, knock them out kwa hitting them as hard as wewe can with your fist and au the club.