Requesting a script for items dropped by monsters

Hello,

I been thinking in a script which works with any creature/monster... If any monster drops "X" item, it will send an effect and message over the body and other message on the screen (white/orange one).

For sample if i add the item "2160" on the script, every creature which drops the item "2160" will show the effect and text.

Can please, someone help me with my request?.

Thanks for your time, regards