I saw this today and thought it would be good to use on the handles of my brew pot:
http://www.craftypod.com/2011/09/16/heatproofing-a-stockpot-with-sugru/
12 packs for about $20: http://www.thinkgeek.com/gadgets/tools/e976/?cpg=froogle
Not sure how many packs would be needed for 2 pot handles and a lid handle, though.