www.clown-ministry.com , has several skits and resources listed. Adapting Bible stories into clown skits, ie 'the Good Samaritan" is one that is done by many, and I've seen many different versions.
One that one of our group wrote goes into sharing and the golden rule, no speaking, but basically, one clown comes out with a bird puppet and another clown[#2} wants it and begs and begs, so this clown lets her have it, but of course she can't make it work, and the other clowns make fun of her, but the initial clown teaches her how to make it work then they all want to try it and the 2nd clown helps to teach the next one. Skits like this allow for the older ones to do the main production, but allows you to use as many clowns as you want.