Using the Info overlay visualisation, we can show any HTML; this includes Font Awesome or Font APEX icons.
Query for map plugin:
select c003 as lat, c004 as lng, c002 as name, c001 as id,
'<i class="fa '||c012||' fa-2x" style="cursor:pointer;">'
as info
from apex_collections
where collection_name = 'MAP'