Have you done a search on the Internet? There's a website-www.rotation.org that has all kinds of ideas. I found it by Googling "workshop rotation."
Just thinking off the top of my head here. Why don't you ask people in the church to donate any old gloves they have that they don't have matches for or that they wouldn't mind donating. You could stuff the gloves maybe? Have the index finger sticking out, put it on the end of the dowell, tape some newsprint on the wall, dip the finger in tempera paint and see how well each child with their hand can write their name or draw a smiley face. I think they'd get a big kick out of trying that and watching others try as well. A smiley face may be better because it would be quicker than each person trying to write his or her name. To send it home, they could mount the glove on a smaller dowel fitting just inside the glove and affixed to some sturdy cardboard so that the glove is pointing upward, with the message, "Always look up to God." Again, use Google and put in something like "hand steeple." I know of two churches that have a hand pointing upward on their steeples. I think that is kind of cool.