Help with enrichment and cage décor

I've found it increasingly hard to find good items to give to my three weirdos, and I was wondering if anyone had ideas. I've spent a lot of time on amazon, but everything either seems too expensive, is of dubious quality, or has worrying reviews (typically stuff like mould or glue). A big issue is that they're very clever and get bored of new objects easily.

Right now they've got a woven grass hide, a dig box, a couple platforms, lots of grape branches of varying size for climbing and hiding, cardboard tubes, log fences as ramps and dividers, torn sheets of packing paper, some coloured woven balls they like to roll around and tear apart, apple wood sticks, an egg carton, and a coffee tray. They also have coconut and cork bedding in spots for diversity, as well as a layer of it in the dig box. Miscellaneous sprays and some scattered dried flowers to spice up the landscape as well.

Anyone with recommendations for finding things in Canada would be appreciated