Today the Order of Preachers honors its saints. I am happy to report that we have a large number of beati and canonized saints, as well as three Doctors of the Church, to wit: St. Thomas Aquinas; St. Albertus Magnus; and St. Catherine of Siena. In fact, the Dominican Third Order is thus far the only Third Order to have produced a Doctor of the Church (Catherine of Siena).
Herewith some prayers to and in honor of Dominican saints:
Prayer to St. Martin de Porres (whose feast we just celebrated last week)
Chaplet of St. Dominic (also known as the Cry of Anguish)
And of course, in the sidebar, under Victory Topics, there are the Novenas of St. Dominic and Bl. Margaret of Castello.