Small Exterior Hole Weatherproofing Kit/Filler

The user expressed concern that standard caulk wasn't sufficient for waterproofing a small 1/8" exterior wall hole, indicating a need for a more robust or specialized solution for small penetrations. This presents an opportunity for a product or kit designed specifically for sealing small exterior holes, offering superior weatherproofing and moisture prevention compared to general-purpose caulk. It could be a specific type of sealant, a small expanding plug, or a multi-component solution.