These parts can be used to make a siphon (AKA racking cane) for winemaking. A clip holds the siphon to the top of your brewing flagon, and a cap for the bottom of the siphon prevents sucking up lees that have settled to the bottom.Both these parts are replacements for the siphon I use when making honey mead. The original cap got lost after washing, and the original clip got run over by the lawn mower (don't ask).You probably want to print the clip with support.Together with the hose clamp of http://www.thingiverse.com/thing:28447 and some flexible tubing (nylon/silicone ~10mm ID) and rigid plastic tubing (~10mm OD), you could make the whole siphon.