Second Mistake was a slab of carbonite 'art' containing the Squib Grees. Jenet criminal Ludlo Lebauer had him frozen inside when Grees, Emala, and Sligh, refused to be cut out as middle-beings and out their contacts. With the help of Han and Leia, Grees was freed and Ludlo lost his favorite piece of art.
Appearances
"The Trouble with Squibs" — Star Wars Insider 67 (reprinted in Hyperspace: The Official Star Wars Fan Club) (First appearance)