...warm snuggly quilts made by your grandmother, great aunt, mother or the Amish. Perfect for cold winter morning hiding beneath and/or snuggle. Also good for picnics and hot chocolate.

... madras jackets, clam bakes, G&T, mint juleps in silver julep cups, Cap Cod, lobster rolls, sailing, khaki men's shorts and suede or saddle shoe Bucs.

Bad patchwork is...
... any button-down shirt paired with "mom jeans". I don't care if it hides spills. You look like a badly upholstered sofa.

... this purse. Not because its $52,500 but because it's plain ugly and egotistical.

... Marc Jacob trying to make us believe that trolling through scrap piles and making a shoe out of it. Uh-uh, no.

Patchwork in 99.9% of fashion is not "whimsical" or "versatile" or fun. You look like pile of used hankies or a remnant pile at best.
It's best just to avoid this look altogether.