The Battle Mug is a gag. Honestly I wouldn't be surprised for the Recombinant DNA to get one for me for Fathers Day or a birthday, if it were 1/5th the price.

For a company to include the Battle Mug in a kit unironically is not a good sign.

When I teach concealed carry classes I urge all of my students to avoid anything on defensive firearms, ammo, clothes, and other gear that might make them look bad in court. This definitely includes any unfortunate text or graphics; zombie stuff is not recommended. While I'm not aware of any court cases where zombie graphics played an important part, I am aware of other cases where less than well-thought out text added to a firearm harmed the owner's case.

Back to E&E kits. Learn the laws of your locality -- some places, some components of E&E kits are illegal to carry. I'm not an attorney but I believe if the police find that kind of thing on your person it can be used against you in court.