In the sketches, photos of which were obtained by PEOPLE, Nicholson depicts Thompson with his trademark cigarette, cap and sunglasses, with quotes such as "All were not wrong" and "How'd ya like the elk heart." (Thompson once famously delivered a bleeding elk heart to Nicholson's house as a joke.)
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"Bill Murray did a stand-up comedy routine," says one guest, adding that tables in the ballroom were decorated with Mardi Gras beads, women's underwear and tubes of red lipstick "to capture Hunter's spirit."
Later in the evening, guests were offered Jell-O shots spiked with gin. Explained one attendee: "The family wanted their guests to enjoy something Hunter enjoyed on a daily basis."