Sorry if someone has posted something similar but I discovered an easy way to do the wine mod. As a lot of us know getting that wine stopper over the top can be a real PITA. If you have a silicone sleeve from other Penis Enlargement products like clamps for sale online, you can take that sleeve and slide it over the top and it will create a seal. Then slide your wine pump over the top and that's it. What's awesome about this way is you can remove the pump and reattach it as you please and it still holds pressure. Also it can be used as an air pump this way.