I came across a company who provides free SSL certs (not SAN/UCC). This will be ideal for a home lab.
The StartSSL Free (Class 1) digital certificates are provided by StartCom without charge. They provide modest assurances and are meant to secure personal web sites, public forums or web mail. All mobile phones and browsers won’t have the root CAs, but you can tackle it easily in a lab environment.
Get your free SSL cert here
Certificates For Exchange does all kind of certificates for a very low price.