I've been through this with my Mom, who is 84. He can do better than 1% on CD's (even short termers like 12-24 months).
Also he can look at high quality (AA-AAA) corporate bonds, such as those issued by Daimler-Chrysler, GMAC, Ford, others. One "feature" of some of these bonds is the right to cash them out (death benefit) with no penalty should your Dad pass away (hopefully not for a long, long time).
I recommend the higher quality bonds, because I'm sure he is more risk-averse and would want to avoid high-yield bonds.