I want to make these "Droppers" (Tycoon game) drop meshes instead of plain blocks, How?

It should take the mesh out of the script and apply it to the block, There are two dropper types, Manual click and auto, I've tried actually doing it myself but it just tends to break.

I'm also not sure how to make the part be right side up, (Tried to do part.rotation = (0,0,0) or something, but it also didn't work.

wait(2)
workspace:WaitForChild("PartStorage")


deb = true 
script.Parent.Clicker.ClickDetector.MouseClick:connect(function(wat)
    if deb == true then
        deb = false
            local part = Instance.new("Part",workspace.PartStorage)
            part.BrickColor=script.Parent.Parent.Parent.DropColor.Value
            part.Material=script.Parent.Parent.Parent.MaterialValue.Value
            local cash = Instance.new("IntValue",part)
            cash.Name = "Cash"
            cash.Value = 1 -- How much the drops are worth
            part.CFrame = script.Parent.Drop.CFrame - Vector3.new(0,1.3,0)
            part.FormFactor = "Custom"
            part.Size=Vector3.new(1, 1, 1) -- Size of the drops
            part.TopSurface = "Smooth"
            part.BottomSurface = "Smooth"
            wait(.15)
            deb = true
    end
end)

wait(2)
workspace:WaitForChild("PartStorage")

while true do
    wait(1.5) -- How long in between drops
    local part = Instance.new("Part",workspace.PartStorage)
    part.BrickColor=script.Parent.Parent.Parent.DropColor.Value
    part.Material=script.Parent.Parent.Parent.MaterialValue.Value
    local cash = Instance.new("IntValue",part)
    cash.Name = "Cash"
    cash.Value = 5 -- How much the drops are worth
    part.CFrame = script.Parent.Drop.CFrame - Vector3.new(0,1.4,0)
    part.FormFactor = "Custom"
    part.Size=Vector3.new(1.2, 1.2, 1.2) -- Size of the drops
    part.TopSurface = "Smooth"
    part.BottomSurface = "Smooth"
end