Minor tweaks, bug-fixes, QoL and utility buffs are all he really needs.
As far as skins go: Hell's Kitchen Shaco (along with Baker Panth and Master Chef Tahm working with Morg at the Sinful Succulence), Thespian Shaco (making use of the comedy and tragedy drama masks), Infernal Shaco (where he actually appears demon-like), Surprise Party Shaco (to accompany Amumu and Fiddles), a **Sewn Chaos Shaco **(him being a plushy doll with his two knives being the two halves of a pair of scissors), Vengeful Shaco (appearing like V with the Guy Fawkes mask and the black suit from V For Vendetta) and WackArnold's Shaco (where he has poofy red-hair, a yellow jumpsuit, two spatulas, with his JitB being Wacky Meals )).
GG, EZ.