Sapphire Gin, and thrift shop old coloured depression glass in green, pink and harlequin sets are also great sources of coloured glass.
I have a set of goblets in six different colours I'm hoarding against the day I break them. (they are too pretty and in perfect condition to break them for beads just yet)
like these
https://encrypted-tbn2.gstatic.com/i...pCIoG5nf0yppbQ
http://thumbs1.ebaystatic.com/d/l225...KH83FRXfQw.jpg