Our group is interested in all of your designs! #4 & #20 have a great community feel. Could you try using colors that are more bold? We don't have to still with the copper color for the "1 cent". Also, could you stack our slogan to the right of the logo (like "One Cent Funds" is now) and remove "One Cent Funds". We would like to see the penny get some work; more like #10.
#15 - Could you make the hand more detailed with a different look for the penny?