If you check out my site:
http://sponsorhostedgalleries.com
You will see in the table on the main page all the sponsors that have pictures of the day. (some also have pictures of the hour)
Just look at all the sponsors that have a "Yes" under the "Daily Updated Pics" column. Whereever possible, I have included their picture of the day links on my site so you can check them out for yourself and just copy and paste the ones you want to use after you sign up.
I know the drunkdollars ones convert OK. I haven't used all the ones I have listed.