Mob/NPC Death GUI Drop item?

On death of a mob, I can open a GUI but how would I incorporate a GUI in which shows random items the mob had dropped (I have a drop script already btw) and so you don't physically have the item in your inventory until you click on the GUI button for the item you want.

If not I could delete the script if it's not usable for a GUI.

I was already given help thanks RockerCaleb, so here's the drop script

1 local items = {"common","common","common","common","uncommon","common","common", 2 "common","common","uncommon","rare"} Then say whatever happens, and they are going to get the item

local items = {"common","common","common","common","uncommon","common","common",

"common","common","uncommon","rare"}

local chosen = items[math.random(1,#items)] -- gets a random one from the list

print(chosen) Then just if the item is common then whatever, elseif it is uncommon then whatever, elseif it is rare then whatever.

local items = {"common","common","common","common","uncommon","common","common", "common","common","uncommon","rare"}

local chosen = items[math.random(1,#items)] -- gets a random one from the list

print(chosen)

if chosen == "common" then

--Do whatever you want

elseif chosen == "uncommon" then

--Do whatever

elseif chosen == "rare" then

--Do whatever

end