Crockford base-32 is somewhat traditional, but still better than the RFC 4648 standard. It is specified at http://www.crockford.com/wrmg/base32.html.

z-base-32 is a lowercase base-32 encoding designed to be easily hand-written and read. It is specified at http://www.zer7.com/files/oss/cryptsharp/zbase32.txt.