One for the very first songs I learned on the bass was, "Slippin' into Darkness," by WAR. The lick that bass player BB Dickerson played on the song was simple enough for a beginner to learn yet nuanced enough for me as an accomplished player to still get something new from it every time I hear it.
I took from all the Funkateers back in the day and like "Funk 'n Hood," I'm bringing it to you.