For an example of this sort of thing, see Premium Bonds, available since 1956: http://en.wikipedia.org/wiki/Premium_Bond http://en.wikipedia.org/wiki/Premium_B

For an example of this sort of thing, see Premium Bonds, available since 1956: http://en.wikipedia.org/wiki/Premium_Bond http://en.wikipedia.org/wiki/Premium_Bond The stuff about ERNIE is interesting, too.