Ranch water made from Topo Chico lime + Pantalones Tequila. But I prefer the black peppery hints of Don Julio, so I tried dropping a few whole black peppercorns in the bottle of Pantalones, and I think it actually got the flavor closer to where I wanted it. Or maybe it was in my head.
Anyways, cheers!
Source code escrow is a thing, too. I’ve only seen it in the context of (as I understood it) protection against going out of business, but perhaps it could apply to discontinued products, as well?