For example: I have a sprite tool in my hand and i click on the brick sprite will be placed there and my tool will be gone. Then for example I mistakenly put coke but i need to put sprite.. it can be replaced.
1) I recommend using the MoveTo function to the tool, if it is a model.
2) If the tool only contains a part with a mesh or decal then just change the position. Example: Sprite.Position = CFrame.new(0,0,0) --insert position here