Back in the 1970's They had bottle cutters (Maybe Ronco) A quick search brought these up.
www.amazon.com/s/?ie=UTF8&keywords=wine+bottle+glass+cutter&tag=goo ghydr-20&index=aps&hvadid=11424647987&hvpos=1t2&hvexid=& hvnetw=g&hvrand=1724074263160841227&hvpone=&hvptwo =&hvqmt=b&ref=pd_sl_4htjow96sl_b
I'm sure one of these will provide a quick method....
Some here have funded their lasers through Kickstarter. Here is a bottle cutter offered there....
http://www.kickstarter.com/projects/...th-a-new-twist