item switching gui?

I made a GUI to switch between somethings and i think the way i made it is too long to do because i need to keep adding "else" for each items and i got a lot, can anyone help me figure this out? like a faster way to do it, instead of the need to add each items

function OnClicked()
   local items = script.Parent.Parent.ItemName
	if items.Value == "None" then
	   items.Value = "item1" 
	elseif items.Value == "item1" then
		 player.Character:findFirstChild(items.Value):remove()
		 items.Value = "item2"
	elseif items.Value == "item2" then
		 player.Character:findFirstChild(items.Value):remove()
		   items.Value = "item3"
	elseif items.Value == "item3" then
		 player.Character:findFirstChild(items.Value):remove()
		   items.Value = "item4"
	elseif items.Value == "item4" then
		 player.Character:findFirstChild(items.Value):remove()
		   items.Value = "item1"

--etc