Make a Dropper

A Dropper is a bit more complex, but if you did step 4, you will have a sample item.
Copy and paste the sample item, and add the following:

The Script

Below is the script you will use for the dropper

while true do
wait(1)
if script.Parent.Active.Value == true then
local drop = Instance.new('Part', workspace)
drop.Size = Vector3.new(1, 1, 1)
drop.Position = script.Parent.Pos.Position
drop.BrickColor = script.Parent.Col.Value
drop.Material = 'SmoothPlastic'
local val = Instance.new('IntValue', drop)
val.Value = script.Parent.oreVal.Value
end
end

If you understood th Introduction to Scripts, you should know what is happening.
Simply put, this is creating a new part every second, but only if the dropper has been purchased.
So that's that!