Wood Plugs from Skylighter.com http://www.skylighter.com/ Pyrotechnic Supplies shipped everywhere in the US including end caps, wood plugs, paper end plugs, cup sets, mortar plugs and fireworks caps. Wood, End Plug, 1-7/8 Inch http://www.skylighter.com/mall/product-details.asp?id=1874 Wood, End Plug, 3 Inches http://www.skylighter.com/mall/product-details.asp?id=803 Wood, End Plug, 4 Inches http://www.skylighter.com/mall/product-details.asp?id=804 Wood, End Plug, 5 Inches http://www.skylighter.com/mall/product-details.asp?id=805 Wood, End Plug, 6 Inches http://www.skylighter.com/mall/product-details.asp?id=806 Wood, End Plug, 8 Inches http://www.skylighter.com/mall/product-details.asp?id=807