used or broken pallets or lengths of wood (Bryn WN4)

I’m trying to make some raised beds to start growing veg with my toddler, I’ve looked online and while the pallets themselves are relatively cheap, the delivery isn’t so buying them online isn’t really an option. I only need the wood slats so they don’t have to be in working order, or any other bits of wood or bricks or anything that would do the job just to get us going I’d be truly grateful. Or if anyone has any other gardening bits they don’t use anymore like pots or a small trowel or anything at all I’d be so thankful for