This is a remix of a handheld Ryobi Blower nozzle with about a 1 inch opening. I found the 20mm and smaller versions were great for air mattresses but too small for my normal shop use.
Locks in like the stock nozzle does. If you print with 3 layer walls, the whole thing gets printed as concentric rings with no infill.
Ryobi_Blower_Adapter_Large_1_inch.stl | 224.9KB |