Generate vanity .onion URLs (i.e. they match a pattern you specify) with your CPU.
Compile with any C compiler, link with libcrypto.
Example:
$ gcc oniongen.c -o oniongen -lcrypto
$ ./oniongen pattern
Will search for an .onion URL that begins with pattern
.
Example:
$ ./oniongen onion
This will find an .onion URL for you that begins with "onion".