Using nothing but cowboy chords is arguably the easiest way to play guitar. And in fact, most people play guitar using nothing but these chords.
I don't talk about bass guitars very often, but as much as people say that bass players aren't needed anymore, they are - especially in a worship setting.
There's some good ones this year, and you'll definitely want to check these out. If you get the jump on them before November 24 (which is when Black Friday is for 2017,) you won't have any problem getting any one of these.