|Vintage thread spools|
These work really well 'clustered' together for some obvious reasons; they are similar to one another and they are all of similar sizes. Some less obvious reasons my be that the colours are working together because they are mainly similar in tonal value, that the texture of each object is comparable to the one next to it, and that they are beautifully symmetrical. What may not be obvious immediately is the balance that is created by the negative spaces, and how what's not there is as beautiful in its shape as what is.
Still head over heels in love with the serif font featured on the SYLKO label. Why don't we use fonts like that any more? I swear, if I'd been born in another era I would have been a typesetter!