I found this video where a guy mixes C.A. glue and baking soda. Note: according to the video, the baking soda mixed with the c.a. glue has a chemical reaction that can burn the skin. So use caution if you try this at home..... Also note it seems this technique is permanent. Cool stuff...
http://www.youtube.com/watch?v=CjLptQxvQl8
-pdx