In Diamond/Pearl: Trade for TM37 (<a href="http://pldh.net/dex/move/sandstorm" class="linksred">Sandstorm</a>).<br />
In Platinum: Trade in exchange for move tutoring. Visit <a href="http://pldh.net/guides/dpp/shardsandtutors" class="linksred">here</a> for more.<br />
In HGSS: Trade in exchange for a variety of berries. Visit <a href="http://pldh.net/guides/heartgoldsoulsilver/shardsandberries" class="linksred">here</a> for more.