Match

b flat.

EDIT with some results: Phew another great variety of images and words. Matches made up quite a subset so much so that I chose two images for hearts as they artistically capture the moment of ignition they are Inverculain's and Frani's.

Matches (couples) I thought might feature then I saw padlocks but no these did not signify undying love. Majoayee wants to unlock 2019 whilst Honeybeachcomb wants to unlock potential.

John39 has managed to match colour.

Kangazu got really lucky with her image.

And craftylady has to juggle a lot of matching when quilting.

There will be more . . .