Welch plugs

Quick question has anyone ever found an assortment of various size welch plugs. There are many times I find the need to remove a Welch plug to clean transition ports, or for other reasons while cleaning carburetors. But the carb isn't in need of a full rebuild so a full rebuild kit is not needed. Thanks for any information.

The sizes are would not just be for 2 stroke carbs but also 4 stroke.