I suppose I could've used humbugs or toffees, but come on... "sweets" is a chance to get colourful!
So I chose Smarties. Not the ones of my long ago childhood, but new ones so I could have some zingy blue in there.
Scraps of bright fabrics were Bondawebbed onto pelmet Vilene and then covered with white cotton. To get a mosaic effect, I machine stitched a diagonal grid all over, and then snipped away the white layer to reveal the colours below.