I've seen many pots painted with plain ol latex paint. Exterior based would be best.
@Julie S there have been a number of posts on here about painting/decorating clay pots. @Beth at Unskinny Boppy has a great post here https://www.google.ca/#hl=en&sclient=psy-ab&q=canvas+femce&oq=canvas+femce&gs_l=serp.3..0i13l2j0i13i30j0i13i5i30.78428570.78439451.0.78444188.8.131.52.184.108.40.2068.1339.1j8j0j1.10.0...0.0...1c.1.9.psy-ab.mUBBhyPt1Pk&pbx=1&bav=on.2,or.r_cp.r_qf.&fp=c75ea38d1859b04d&biw=1310&bih=589
and I am sure she would be more than happy to answer your questions.
You can search the site for more ideas and the poster could answer your questions.
Thanks for posting and do update us with pics of what you do - love to see the before and after posts.
I have used the acrylic paint from Michaels. It was okay as I didn't need it to remain crisply detailed. A friends class used paint to do paint base and handprints on top of the base paint but after several years it faded away. I believe it is because clay does hold hold moisture and then dries out. But if the project is for a season, any paint, even spray paint, will do....I'd research by googling it if the project is very special.
After Painting I always seal the exterior and the interior. Water seeps thru and will pop the paint off, so inside and outside need to be sealed...Any way this works for me...
i use acrylic paint and then seal with a poly
I did some last summer with aerosol red primer that I got at the Habitat ReStore. They've been outdoors all winter and held up nicely. All I did was scrub them first with soap and water and let them fully dry.