I don't know how to make a script so that if you click a GUI and have a game pass or t-shirt, you get the tool from the GUI. Can anyone help?
You are going to need is 2 things.
1, GUI click function
http://wiki.roblox.com/index.php/Beginner's_GUI_Tutorial
2, And PlayerHasPass
http://wiki.roblox.com/index.php/PlayerHasPass_(Method)