attaching mason jars

I'm looking for a way to attach two mason jars together, opening to opening. My plan so far is to simply glue two screw lids together in such a way that I get a water-tight seal, and use those to attach the mason jars together. My plan is to place a liquid in one jar, place a coffee filter over it, then the joined lids and second mason jar, then flip the entire thing over to let it filter into the second jar. I figure I can do this for any number of things! Tinctures, cold brew coffee, home made vanilla extract (and other extracts), or even flavoring alcohol with fruits or herbs.

My main question here: is there a better way to attach the two lids? What method would you use? Or would you simply not bother with this method and do it a different way? Thanks all

The two ring idea sounds good to me. Maybe JBweld for the glue, that stuff glues my car radiator to fixing jewelry.

Alternatively you could buy a plastic funnel and the funnel coffee filters. Put the funnel in the empty jar, place coffee filter in, and either dump the top jar in or rest it in the funnel to flow slowly. Like in the movie " The Manhattan Project (1986) " when Paul filters the syrupy uranium to the solid particles. Sorry for the vague movie example

pour-over coffee filter funnels are perfect for that. They will hold a filter above the receiving jar perfectly.

So the plan thus far is to place a filter over the jar with the liquid in it, attach the back to back lids, then the spare jar and then flip the whole thing over. I really like that it wont require my attention after this point. Plus I can compost the filters!

I think I would opt for a good silver solder, as opposed to glue or JB weld. Some of those things wouldn't taste too good.

Some food-grade jointing material (flat rubber bands from Mason jars may work) between the lids and a few nuts and bolts to hold them together?

As a follow up to this, the idea was just too good to be true. The liquid and filter together form a barrier against incoming air, causing the top jar to make a vacuum and stop the coffee from flowing. If there was a removable plug in the bottom this would not be a problem, but that's just too much work. I decided to instead make enough coffee to last 2 weeks at a time. Works easy

For those who want to give it a try:

1 lb ground coffee
2 gallons water

let steep over night, filter, and then drink. I cut mine with milk and a little sugar. It's also quite good with hot chocolate mix.

Years ago, my parents quit drinking coffee.
But Mom knew that my sister and I would want one after dinner if we visited.
She got a thing like this.
There is a basket underneath that you fill with grounds, then fill the 'funnel' with hot water.

Worked like a charm for a single cup.

http://www.overstock.com/Home-Garden/In-Cup-Size-1-Brewing-Coffee-Cone/5528581/product.html?cid=209797&fp=F&TRACK=CSEShopzilla&mr:referralID=688f0315-e147-11e2-9dea-001b2166becc