Poofer Demo with a Click Wanted

Hello - was looking for a particle script i think. Selling poofers and wanted one so if you clicked on a small box it would demonstrate the poofer type/particle and poof with just one click. Does anyone know what i would need for that? Like I would sit the display box for sale and above it have a tiny square box people can click to make it poof on a click. I have different scripts but have no idea what to do or if they're right. If I type "poof" or "/77poof" then the display poofs but I can't just find a click only poof demonstration. Thanks for any help and sorry if I'm not making sense!

Come visit your neighbor across the street in the weird techie-magic mall place and I'll see what I can do for ya.