An older thread on PF mentions Caralot as having the occasional parti. I can't get the website to load but FB is active. Few of the breeder rec's breed parti's but it crops up.
Home of Awesome Champion Standard and Miniature Poodles in solid and multicolors located in Tyler, Texas
www.wekaykennels.com
Home
posayminiaturepoodles.webs.com
Standard Poodle Breeder located in North Carolina
www.tintlet.com
They're also breeding miniatures + partis
You'll need to look thru and vet these. A few breed mini partis:
Visit the post for more.
unitedpoodleassociation.org