local rewards = {
{id = 2160, msg = "aaaaaaaa"},
{id = 2127, msg = "bbbbbbb"}
}
function onUse(player, item, fromPosition, target, toPosition, isHotkey)
for i = 1, #rewards do
local items = rewards[i]
player:addItem(items[math.random(#rewards)], 1)...