If you like the yellow-orange-red range (based on the pictures in your profile...) you might try these at mostly under 10-16" with < 3" blooms...
To find others, you can do a quick search in the daylily database at
http://garden.org/plants/group... and that can help to narrow the search if you are in a warmer zone and are looking for evergreens (a lot of minis are dormants) or know hybridizers that specialize/d in minis (siloam, sweet seneca, etc). Also doing a word-search in the main daylily listings at
The Daylilies Database can bring up a lot of options (key words: little, tiny, small...).
To see some handy sources, just click all the way through on a database picture to see if it carries a link to a site; many do. Otherwise, google,
http://www.TheDaylilyAddict.co..., or
http://daylily.com/cgi-bin/auc... might all be possible starting points in a search.