Ours are mostly duck feather pads, although one or two are hollow fibre (I keep meaning to replace these with feather pads and will eventually as they don't look as good!)
The cushions themselves are an eclectic mix although the colours do all go together. So, on the kitchen sofa (teal velvet) we have a few Vanessa Arbuthnott (different patterns and sizes) in teal, taupe, cream, powder blue and red, plus one red Liberty William Morris design and a couple of (different) plain pale blues. These are a mix of ones I've made, eBay purchases and Homesense.
In the living room the two sofas (cream linen and olive green velvet) have a mix of - two (different design) Vanilla Fly, one Timorous Beasties, a William Morris embroidered pattern, gold/green sequins, olive sheepskin, dark green crushed velvet, purple velvet, pale olive velvet and an aubergine flowery pattern. These were also mostly eBay and Homesense/TK purchases although the Vanilla Fly ones came from a shop in Brighton.
The snug sofa has my prized embroidered teal velvet Anke Drechsel 😍, a William Morris strawberry thief in a weird colourway, a Matthew Williamson lime velvet from Debenhams, a couple in Voyage peacock feather fabrics I made myself and a bubblegum pink velvet one from TK.....
Nothing too matchy here, lol 😂