Your example http://☃.net/ seems to have been registered via Dotster; perhaps you should try them.
$ whois xn--n3h.net
Whois Server Version 2.0
[...]
Domain Name: XN--N3H.NET
Registrar: DOTSTER, INC.
Whois Server: whois.dotster.com
Referral URL: http://www.dotster.com
Name Server: [...]
Status: clientDeleteProhibited
Status: clientTransferProhibited
Status: clientUpdateProhibited
Updated Date: 07-dec-2008
Creation Date: 06-dec-2004
Expiration Date: 06-dec-2009
>>> Last update of whois database: Thu, 19 Nov 2009 11:18:50 UTC <<<