It seems unpopular now, but infusing beer with hops or other spices was a mini-trend and now it is a mini-infuser.
Growler Bro (not the name I would pick) has this tool to add a little va-voom to a beer in a growler.
Now, bear in mind that the description also includes a warning of explosion. But for the constant George Lucas tech tinkerer, this might be a useful tool. So, mark as slightly needed.