Thank you all for your suggestions, but as I continued to search I found exactly what I was looking for. The gel is call MUSEUM GEL, or QUAKEHOLD GEL. Amazon among other craft sites sells it and I am even adding the web site so you can all view it for future reference. I had seen this stuff while in someone elses RV and couldn't believe it.
http://www.amazon.com/Quakehold-Muse.../dp/B0002V37XY