Why does my invisibility tool not work properly?

I'm trying to make an invisibility tool that makes your entire body turn invisible, then turn visible again, but for some reason it's not functioning how I would like.

local tool = script.Parent
local debounce = false

function onButton1Down(mouse)
if debounce == false then
debounce = true
    local player = game.Players.LocalPlayer
    for _,m in ipairs(player.Character:GetChildren()) do
        if m.className == "Hat" then
            m.Handle.Transparency = 1
        end
        if m.className == "Part" then
            m.Transparency = 1
        end
        wait(1)
            for _,mm in ipairs(m:GetChildren()) do
                if mm.ClassName == "Decal" then
                    mm.Transparency = 1
                end
                wait(5)
                if mm.ClassName == "Decal" then
                    mm.Transparency = 0
                end
            end
            if m.className == "Hat" then
                m.Handle.Transparency = 0
            end
            if m.className == "Part" then
                m.Transparency = 0
            end
        end
        debounce = false
    end
end


function onSelected(mouse)
    mouse.Icon = "rbxasset://textures\\ArrowCursor.png"
    mouse.Button1Down:connect(function() onButton1Down(mouse) end)
end

tool.Selected:connect(onSelected)