Not to be a contrarian, but the tumblers really look to my somewhat untrained eye like vintage Murano, maybe even one of the better makers (AVEM, Seguso) who worked in pulegoso. Whoever made them (Mexican, Chinese, or other) would have not only been very intentionally mimicking vintage Murano glass -- pulegoso and murrines -- but would have taken the unusual step of innovating. I personally haven't seen this combination. Low-end copycats always lack artistic inspiration. Has anybody ever seen this combination or something like it, on bona fide vintage glass, which would (paradoxically) support the assumption of new and cheap? Or is my ignorance showing concerning combination and use of classic techniques by low-end producers?