The quote from Michael McKean's character ("If you plant ice you're gonna harvest wind") is from the Grateful Dead's song "Franklin's Tower". Later in the episode, Frankie quotes "Eyes Of The World" with the line "we live no particular way but but our own"
The bid sheet for Jerry Garcia's shoes has the # 47 along with a doodle of a middle finger on it before Frankie writes it (6:44 in).
"You plant ice, you're gonna harvest wind," is a lyric from The Grateful Dead song Eyes of the World. Michael McKean quoted it to Jerry Garcia, who sings it, but it was written by Dead lyricist Robert Hunter. The episode ends with the song as well.