West Indian sea egg
... that the West Indian sea egg decorates itself with bits of seagrass and fragments of shell held on by its tube feet?
... that the <b id="mwDqM"><a href="./Tripneustes_ventricosus" id="mwDqQ" rel="mw:WikiLink" title="Tripneustes ventricosus">West Indian sea egg</a></b> <i id="mwDqU">(pictured)</i> decorates itself with bits of <a href="./Seagrass" id="mwDqY" rel="mw:WikiLink" title="Seagrass">seagrass</a> and fragments of <a href="./Bivalve_shell" id="mwDqc" rel="mw:WikiLink" title="Bivalve shell">shell</a> held on by its <a href="./Tube_feet" id="mwDqg" rel="mw:WikiLink" title="Tube feet">tube feet</a>?