PlateProp
Smash Master
Give them the Dandy.Do it. You won't regret a minute of it, unless you absolutely hate the art style. I was intrigued by the first episode, and then it just kept pulling me in. Helps that it's short(11 episodes, I think), which I think keeps the writing tight and doesn't let the plot meander too much.
I'm probably going to show it to my non-anime fan friends. They enjoyed Cowboy Bebop and FMA:B, so I think they respond better to stuff that can be better related to from a western perspective, which Ping Pong definitely can.
EDIT: Did I mention the stellar soundtrack? The Hero's Theme and Peco's Theme are my personal favorites, but Kong's Theme(China) is excellent too.
https://www.youtube.com/watch?v=62qWI7CpIds&list=PLPOElRsPgw-WDgrBBTIiGJCLXqLz2cw4z
Space Dandy