custom item script

Hi guys, i'm here to make a request if its possible I need a visual item at shoes slot that make character float a little and increase speed by some %, also need to know if is possible to add Visual option to manner PK system, when ppl kill someone it show Option i choose! thank you !

I need help creating a script for a potion. I want it to make the user resistant to the freezing effect for 1 minute. I tried with autobonus but it did not work. Thank you! (Google translator)