I'm not actually too sure what the other two pieces of this particular triforce are ...
dA link: http://daffydwagstaff.deviantart.com/art/Triforce-of-Clevage-614765941
FA link: http://www.furaffinity.net/view/20252978/
FN link: https://beta.furrynetwork.com/submissions/artwork/public/1188002/
Furrific link: https://www.furiffic.com/affie_beck_lauder/view/73065